Trading cars & parts
I ofcourse would not take sides on this issue because I Know nothing about your deal but I would say if you trade or sell something it has to be on your word..Selling it built by someone else (unless agreed upon at the time of trade) does not free you from any problems with the item. I bought a BBC from one of my best friends & after tearing it down,It was junk!! Right away he came up with the excuse of thats what the guy told him??? I had let another friend have it because he needed it right then & I didnt.(Actually hes the one that tore it down) No Questions asked,I refunded his money..Guess who got left holding the bag?? Right....You have to know what your trading/selling or have the understanding before the exchange..JMO