RE: Hook up plane to Pylon race???
There already is an event designed to escalate into AMA 424. Read the Club 40 forum.
The planes are no longer cheap, but they are relatively inexpensive. Club 40 sport engines can be had at swap meets for $30.00. At Dayton, I bought one for $20.00 and one for $25.00. Also, there are probably a lot of them in your club. After that, escalate to Club 40, which uses BB engines, the most popular is the same engine used in AMA 424.
Besides that, the planes are great flying sport planes.
Check it out.