After one week, I can say: "Wow!".
Despite the fact kit is complicated to assembly (because they wanted to keep sharp details everywhere), it is incredible piece of engineering. Everything still fits like the best Tamiya kit.
I was a bit afraid that I would not been able to keep geometry of all these small walls and structures, but... I prepared carefully each piece - it was nothing hard, i just slightly sanded all pins and sides to be OK - and the bottom of fuselage is just as it was made from one big block.
I know I have to fill some places, but it is 5 minutes job.
Seat looks very detailed, however this was the most thougt piece to put together. If built by guide, it does not fit into cockpit. I had to cut off the frame after back and attach catapult tubes directly to the seat (otherwise the seat would have been too much forward and collides with sidewalls pins).
However, I have pardon for this issue - the seat is not designed for this kit. It is originally Reskit designed for some other kit (Skyray, I guess).

I added a bit wiring, visible on photo of cockpit and I added some wiring into wheel wells. Not much, just something believable.

I used putty only to make seamless intakes, otherwise I did not need it.
I continue with painting, keep fingers crossed 🙂

Conclusion so far:
Big plus - excellent fitting of everything
Minus - complicated assembly, but I understand why.

8 attached images. Click to enlarge.

Great subassemblies!

Coming along very nicely, Martin.

Guys, there was a lot said, now it is time for some show! 😀
I hope I start posting pictures of progress in higher frequency, there is nothing tricky what could stuck this build.
I am so excited building it! I even ordered authentic navy blue color from Mr. Paint to not screw up in later phase this excellent kit. 🙂 (yeah, I mixed the same shade from my Tamiyas, but they are really low, I am affraid it would not be enough as this is really big bird.

Cockpit is painted with Mr. Color interior green and black, panels with Tamiya matt black and details with Vallejo brush colors. Scratches are done with PrismaColor pencil (PC949).

The stand on the picture is 3D printed prototype allowing to tilt model by almost 90 degree and work on its sides (perfect for decaling or scribbing new lines.)
I will post more pictures of that, so will it in action. It is great piece of home-engineering and effort of my friend-modeller Martin R.

9 attached images. Click to enlarge.

This is a wonderful job so far, Martin! Cockpit looks absolutely realistic.
I too loved the stand: 3D printing offers such amazing solutions.
Looking forwad to your progress!

Not that it matters a hill of beans, but I wonder how accurate the interior is. I say that because when the only one still in existence was out at Chino, I took the opportunity of it sitting on the line all by its lonesome one day to "scale Mount Everest" and get up on the wing to look in the cockpit, to find it gutted. I rather suspect it's still in that condition today down at San Diego Air & Space. I don't recall a lot of cockpit shots in the Skyshark book.

All of which is a no-never-mind. You've done a really nice job on that cockpit @naviatik - it's certainly better than the cockpit in the Dynavector kit, which I was happy to decide should have been all black and did it that way.

@gblair - I once saw the surviving XA2D parked next to a Skyraider at one of the Chino shows - the Skyshark made the Skyraider look small. Like I said, climbing up on that wing the time I did was "an Everest expedition." The thing is massive!

Hello again with some news.
First, I am not so excited as I was at the beginning.
Second, I am still big fan of this kit and still keeping good mood.
What does it mean? Are u confused? Let me explain it.

The kit construction is complicated. I was worried about not being able to keep good geometry of the fuselage and that was just right. I misplaced halfs of fuselage about half of milimeter - that was enough to cause big troubles, because this kit requires so much precise work. I was sanding, testing, sanding again and finaly I was able to put wings to the fuselage without big force and without having holes between them.
OK, I can say this issue is my fault, not the manufacturer. I guess the plane has just very complicated shapes and there is no other way how to get good quality of detials and make them with injection technology. So, just be extra careful - I took pictures to show you how everything inside is linked together, because everything inside is not only about intakes or exhausts, it is also support structure of the fuselage!
This kit simply does not forget mistakes.

And now we are getting to another issue I had to solve. The machine I want to build has different type of vertical stabilizer. When I realized that I was a bit dissapointed - the company put so much effort into creating this beautiful kit and did not noticed different configurations of machines? Shame on them...
Correction was easy - I cut off the top of rudder part and glued to the fixed part. Then I created one new hinge and renewed lines and rivetting.

I think I got over some kind of tipping point of the kit, because there are just small subsets ahead where I do not expect troubles.

Now, let me finish with some advices to followers:
If you want to build scheme 1 or 2, you should think about creating new smal intake above the main ones. They clearly visible on photo.
For scheme 2 there is also machine with wings, head of propeller and rudder tips painted red - I like this scheme more than yellow tips. 🙂

Be careful, how many pylons you add under the wing. Use photo reference. There might be differencies.

5 attached images. Click to enlarge.