I remember those! IIRC they typically had Rotax power and folding wing option? Are you planning to go steam gauges or glass panel?
I've been out of the sport aviation loop for many years but a friend at work is slowly inching me back in again. He just bought a Pitts Model 12 that I've been able to play a small part in a few updates and upgrades. (machined parts to convert it to auto plugs and wires and keep things neat and tidy.)
Sorry for the hijack.