[tcrist]

Patrick,
I wish I had the (you know whats) to take on a build like yours. I did help (minimal) a guy build a KR2 airplane once. He used what he called glass sphears for the filler. It is kind of like bondo for fiberglass. If I remember correctly (of course this was over 20 years ago) it was fairly easy to work with.
We did use blocks of foam glued together and then shaped for his engine shroud. Of course he had blue prints to go by.

Great job, Terry