A really interesting build - I'm curious how the double, wide pegged Flying V design will function. The central peg on an upright allows for swivel, even if subtle. Two pegs will plant it and in a way that may prove awkward either seated or standing or both. Another issue is bow clearance. (body sides) The tapered V should allow full bow angle but it depends on where the bridge ends up. And lastly, pu poles will need to follow the arch of the fb to balance string output, so a flat pu won't work. I'm not sure if this has already been covered - sorry if I missed it.