Just found a vintage Sears & Roebuck 'Ted Williams' Free Spirit 3 wheeler. Can I modernize it? It's been in my girlfriends back yard for years and I'm under the impression that it's a pretty uncommon bike because I can't find any information on it. Her stepfather spray painted a camo pattern on it, changed out the original handle bars and seat for some Mongoose crap, crashed it, then left it to rot. I just decided to make it a project and was wondering if anyone knew the specs on it and if I could use modern 24" BMX parts on it. 



The only salvageable parts are the frame, rear axle, and basket frame (basket is MIA), it basically needs a complete rebuild and I thought it would be funny to turn it into a pseudo BMX bike. My biggest concern is finding modern wheels for the rear axel.

I'm sure I'll have plenty more questions as I get into this bike a bit more.
Sure, anything is possible, especially if you have access to a oxy-gas welding or brazing torch (or arc/MIG/TIG welder), a grinder with a cut-off wheel and a willingness to cause mayhem.

As a BMX, it'll be heavy and ungainly, especially around corners. When you pedal, it'll pull to one side as it doesn't have a differential, but it'll be tons of fun and something different.

Why not put a really big wheel on front and turn it into a rocking trike?