I made some progress although not as much as I hoped. I worked on the floats, the castings were pretty good just a few bubbles and I had to block the mating edges to true them out. I clamped them together and used thin CA glue and let it capillary into the seam. After I used some thick to fill the gap a bit. It worked pretty good, and will not take too much work to clean up. I will have to add detail though as they lack panel lines, a chine rail and keel.
I painted the bed of the truck, and then scraped and rubbed all the salt off to give a well worn truck bed look. I am pretty happy with these results too.
I also glued the bottom of the fuselage onto the plane, and the fit was very good.
Glueing the bottom of the fuselage also sets the dihedral of wing. I saw one guys build blog and he thought it was wrong and shimmed it. I think it looks perfect out of the box.