your best bet is to get the oem parts and convert your can. Aftermarket power window kits are nothing but trouble. I say that because I have worked for custom car shops for a while now. You will regret a non oem power window kit. Best thing to do is search the junkyards and the inernet for a set out of a wrecked car.
__________________
------------------------------------------------
Andrew Carroll @ XAT RACING

team v8 in the works. hold one tango.....
hot hot heat in the cup!!!