not after perfection...but I think I should rise somewhat above my usual level of simplicity if so many people are going to spend time on this

if you have a spare lens that could work -- that would be excellent!

I think this could be a good excuse to make a couple different types of cameras I've been considering for a while.

I normally make rotating panoramic cameras & simple ones with insanely wide lenses. I've never made multiple-lens 360 panoramic cameras (film wrapped around a cylinder with multiple lenses creating the 360 degree view)...and this might be a good time to start