Colin, @coling
This is a fantastic build, and I have been wanting to comment on it earlier, but lately I have not had much extra spare time. I have built one of these Monogram He-111's and also started one of the new tool ICM kits. This was about 3 years ago, and I have started a build thread on it.
The interior of the Monogram kit is OK in the cockpit area, but it lacks the internal details every where else. The ICM kit has a lot more interior details and also includes two engines for the plane, that are made in a manner that one could display the model with the engine panels removed. This feature would lend itself nicely to a maintenance diorama scene.
However, please don't think I am bashing the Monogram version as I am not. I enjoyed building the Monogram kit, and I have 3 or 4 more of them left in the stash, with one being the exact same boxing as yours. I had to use some filler on mine, but that's expected.
I will eventually end up starting a new build thread on the ICM Heinkel. It's a wonderful kit, and deserves to be finished. Here's a link to the build journal on both of the 111's I started. It was part of the Kasserine Pass group build we had a few years back. There is a lot of information and pictures here that will hopefully be helpful to you along the way.
https://imodeler.com/groups/battle-of-kasserine-passtunisia-campaign-build-group/forum/topic/1-48-scale-monogram-he-111-h-stab-stg-3-north-africa-1942-43/
I built the Monogram kit using the exact same decals you have. I chose to do the desert scheme on the Monogram 111. The decals are among the best I have ever used. The snuggle down nice and presented no problems at all.
I ended up making a small mistake when I was assembling the bomb racks to the lower wing opening for the bomb bay on the ICM kit. This tiny error was enough to make everything else in this area not fit as good as it could have. I ended up needing filler around the bomb bay opening and gondola areas.
This was the result of my sloppy building, and not a fault of the kit. Topping this misadventure, I ended up knocking over a bottle of liquid glue, some off which landed on the upper wing surfaces... Luckily this didn't do as much damage as it could have, and since them, most of it has been simply sanded away with 600 grit paper.
Mow after seeing all of these wonderful He-111's pop up her, you guys are tempting me to drag the ICM back off the shelf of doom and finish her up...