Dude. He came up with a contract and then signed his name to it. It's not like B2Bs business advertises that they will hold a trailer for *only* $7,000. The kid is the one with the problem here, because he agreed to pay for a product by a certain date and it does not appear that he will be able to do that.
He signed with full knowledge of the terms. It's his fault, and I can't imagine any court letting him off the hook because the contract was not the best in his favor. If the court went out declaring some contracts to be "bad" for the consumer, that's a pretty slippery slope they fall onto, since it's murky what -- at that point -- would cons ute an unfair contract.