So I mangled the crankset, bearings, and spindle (I think that's what you call it) on my old Cannondale road bike that has Shimano RX100 components. What kind of options do I have for replacement? Not looking to spend much money at all. A slightly used $30 eBay special would be ideal. Can anyone tell me what to look for or provide a link? I just want to get it on the road again soon until I drop coin on a new Felt F80 or F75. Gracias!