RE: A place to put a conversion engine
Looks good, but I understand what you are saying. I have a lot of "birds" that I would never have if I had to build each one from scratch or a kit. I do still ocassionally build from scratch or a kit because I enjoy it, but the ARF's of today definitely have their place. In many cases, if you price out the kit, glue, covering, etc., ARF airplanes are not really more expensive either.
Your build reminds me that I want to do a similar build, (a D-7) for a 32cc Stihl four stroke that I have. Should be a neat/fun project.
Good luck on finishing yours. You're getting there!
AV8TOR