Okay, get serious. a 4 stroke, front mounted with friction drive. Anything else and you're going to have to loose those cool rear wheels and axle. Check out Large Filipino's front wheel drive trike.
Tom
Any thoughts on electric friction drive? I would like it to be Green friendly to the other people on the bike paths where I live. I get such nasty looks when riding my two stroke!
I really like the fairing! I think the rear wheels have quite a bit of negative camber, but I like the idea of having the power source behind the seat.