The biggest users of belting around here are the quarries. I'd just call there. You might get lucky.
I've got to get a couple of loads of stone so I'll ask when I'm there. I think what they're using is going to be like 3/4 of an inch though. The trailer has a 6000 GVW and I don't want half of that to be in the deck cover.
At the very least they may be able to enlighten me as to who does their maintenance and replacement work.
I'm thinking that unless they have a big market for used stuff a guy might be able to get a really good deal by showing up and helping haul it away!
Sometimes coffee and donuts works as good as $$$$$$$