One of our model buildings literally fell apart so here is a work in progress replacement.
That's a gallon can of paint in the lower right for size comparison.
1/8th ball nose for scribing, 1/4 end mil openings and cutout, 1/16th tapered ball nose for sintra stuff. 1/2 in ply with some 1/4 in trim, a 6 mm sintra for some details. Lots more to do but just a work in progress. Russ