Russ,
Former EAA. Why is a bit involved and off topic and you probably already know why.
This is going to go in something about the same as a Starlite. Or if I find a decent airframe....a Starlite.
Right now I'm just getting the firewall forward worked out. The engine in the pics is about the same wt as a 503 rotax.
It should produce about 45 hp, 35 continuous at MSL. Also burns about half the fuel a Rotax 440 does.
Monty