i own a shop and build engines.the only thing to do is send the customer a short block.with the information highway nowadays it could be very bad for a biz to screw someone.word will spread faster then a cali wild fire and the owner will end up taking it in the ass.with proof and the pics it looks to be a open and shut case.without the bolts being broke or the threads being sheard off it couldn't be more clear.but if your a back yard builder then i guess you wouldn't know what went wroung.it is to clear to me that the guy that built the lower end doesn't have a clue.this is the stuff that could ruin a biz quick.i can't beleave the owner would take a gamble with his biz not to make it right.all you have to do is stop 4-5 people to start digging into the pockets of the owners.that's easy just think about hundreds or thousands then the door will be shut.good luck with the guy he's going to be on the fence and could fall off fast.