i've been thinking of trying to make my own custom seat. i'd prefer to start with a solo seat and rack and was wondering if anybody has one laying around that they'd wanna trade for a corbin with passenger backrest. its a corbin from 1988. the tag says "mike corbin" on it. its much more comfy than the corbin i had on my last bike. its a nice seat and i'd rather not cut it up. anybody?