Hello David,
using balsa for the formers is a very good choice; you can stiffen it with PA glue if necessary. Smoothly sanding to follow the contour ... absolutely fine. The AKITSUSHIMA upscaling should be possible; the print screen of the YMCK could be a little problem? Anyway I willl be a close follower of your construction report.
With lovely greetings
the Wilfried
|