I have a Toro 25cc conversion I have been thinking about putting on my Edge. I haven't done so because I am too lazy to mess around with a good flying plane. Y'know, "if it ain't broke, don't fix it"? I would sure like to hear what you think after you get yours together! You might consider it a public service!
I am presently using a Magnum 91 XLS 2 stroke. So, I think you should go for it and report back.