My problem with this is that I DID build and fly in those times (late 60s, early 70s) and ALL of my pattern models, Super Kaos, Dirty Dirdy, Intruder, Cutlass, Compensator, and later Curare, Tipo, Hippo, and Atlanta all had retracts. I am aware that the models can be made to fly well with fixed gear, but damn, they don't look the same, and the ONLY reason I would want one now is nostalgia, not flight characteristics.
I currently have an Excelleron 90 with a YS 110, Futaba 14MZ, and fixed gear that flies amazingly well, better than any pattern model I owned in that era but it's NOT the same. If/when I do build another Compensator, (I had 3) it will have a 4 stroke and retracts. I know that excludes me from SPA but, Oh Well. I curently compete in F3C and get plenty of competition there so a nostalgia model would just be for my enjoyment anyway.
Anyway to get back onto the topic, yes, I would be interested in an ARF or SARF Compensator.
Gordie