Seabass,
The problem you'll encounter with a Speedmasters is that the cast wheels need to be replaced with America hubs. Then you can have a wheel shop like Bucannan lace-up some new rims. Also, you'll be giving-up the RH brake rotor using an America front wheel. I'd look into lacing some generic V-Twin hubs/wheels... the front being a dual rotor model. Whichever way you go, it wouldn't be cheap or easy.
Mike
