I also recommend Acrylic Specialties & Plastics.
Sure, if you call looking for a fight you probably won't like the guy, but he has TONS of varieties of acrylic and polycarbonate, etc., and he sells his used hardwood acrylic spools as well.
A little hard to find! It's in the back of a building, not much signage. Peel your eyeballs.
Public - a month ago