How about a Cushman Eagle with a heart transplant? I saw this at the El Camino swap meet a couple of years ago.
Ha ha, very cool, a "Sportie for shorties"! 40 years ago I pestered my parents to buy me a "Grand Prix" minibike, that someone had installed a 650 triumph engine in. Sadly, my parents didn't have the passion for motorcycles like me, and thought that a 650cc engined mini bike might be a little too much of a handfull for an 11 year old. I've never forgiven them for that, and when they pass, I'm using my inheritence to build one just like it.............