I don't think it'd be a problem. I'd rather have a used one so that way it's already broken in.I tried to order a TRZ transmission/driver mount from TheRPMstore, but they are out of stock. I'm not getting any response from Protege Garage. These are the only two vendors I know of to purchase this mount using PayPal.
I found a TRZ mount on Ebay for 75 and the seller will do overnight shipping. Need this in a hurry. Said that he had the mount on for 10k and the washer and bushing in the picture look intact.
What do you guys think? Should this be okay? I normally wouldn't buy a used mount, but the TRZ transmission mount looks to be pure metal everywhere. Should I go for it?