Go with the Schwinn--You'll have either a hard time finding French/Swiss parts for the Motobecane if they're needed. Also, keep in mind the fork is only interchangable if the head tubes of both bikes are the same height. Plus, the headset on the 'becane is probably French threaded, so you're back to availibility problems... Take the frame & fork (together assembled is definitely preferred) to a lbs and see if they can straighten it or they have a replacement. A chrome hi-ten replacement fork shouldn't cost more than $25.