Quoted from captainadam_21:
Why no receipts? What if the person wants to put it on route and needs a receipt to depreciate the asset?
IMHO, that's up to the buyer to figure out. I'd be willing to write something that indicates a sale but not who the seller is. But, I'm not going to have something the IRS can come back to me on. For example, I don't have any purchase receipts that I could offset the capital gain against to show negligible gain or even a loss on.