Ah, the RV-7...
What power plant are you planning on using?
I fly a Jabiru J-230 and their engine by the same name has never let me down.
My advice: Stay away from Rotax!!!
Glad to find this post. I converted my garage into a gym for my training - I'm going to be using the big maxx as my main heat source.
I'll be a lurker in the next few weeks for sure!