Thanks, friends
@ Tino, discarding the tabs, 6 edges remain. It is too much for me to handle and the trick is to eliminate degrees of freedom. A combination of flat and/or rounder formers almost always solves the problem. You have just to figure out a good combination
I told you that this was an ambitious kit! Today’s pictures show it well. The laser cut frames yield 1mm x 1mm card strips that serve just perfectly to shape the small columns shown in the first picture. I used half-cutting (maybe more than half…) to get the sharp edges apparent on the pictures. A lot of edge coloring work needed!
The tiny triangles may be a bit too much but, well, why not?