I can't exactly sell it because I suprizingly use it more than I thought I would, but PM me what your schedule looks like and I'll help you roll them.. I have a heat gun as well.
My suggestion was to redrill the existing holes.. I'm sure there is a way to do it without the wiggle room you're worried about. I can't say that I've ever personally looked into something of that extent but I hardly doubt it's possible.
That explains it.. lol. I haven't dealt with a cable clutch vehicle yet so this is something I have never seen before. *shrugs* I'm always willing to learn.
That engine alone would be worth atleast 6-8k now if he still had it.. That's amazing because you're lucky to find ANY aftermarket parts for that engine anymore. Ask him if he has any pictures, I definately want to check it out!