This is something I started building about 7 years ago. It's an Alfa Romeo powered trike, with a 2-litre DOHC motor in it from an Alfetta GTV hooked up to an auto transaxle from a 75 V6. Front end is Harley Wide Glide, Rear wheels are AC Cobra 289. Well actually they're brand new and would fit a 289 Cobra rather than being off of one... All in 1 1/2" CFS 3, using the De Dion tube from the Alfetta as the rear most frame member. I stopped working on it because I got knocked off of the bike on the way home one night, and it's basically sat in the corner ever since while I've been trying to get my life sorted out. With a bit of luck, it ought to get dragged out of the corner and sorted out sometime this year. The thing you'll notice is how much affordable digital cameras have progressed in that time.