Hello Outrider6,
Rich Uravitch has a website: RichUravitch.com. I've contacted him via phone and email. He has the plastic parts for your size OV-10....nose, cowls, etc. for abut $35. I have his 81" version and will get those parts. If you contact him, he is very generous with his information and could most likely send you in the right direction re. retracts. His email contact is:
[email protected], and his phone number is
321 728-4850. He lives in Florida. Good luck. P.S. I’ve been advised by very experienced builders in my club to go electric with the engines. I was originally going to go with glow, but they cautioned me that if one glow engine quit, the plane would go down. Period. They said in this case, electric is the way to go. And by the way, glow/gas engines are still widely used in my club! Of course the majority of members are older guys.