Unfortunately I agree. Really bad that you cannot trust anyone these days. I am at the same point however neither seller is doing anything for me unless I send the pistons back, so I will likely end up running it. Will not see many miles however thats probably a null point now.
I would tear deeper into it like looking at rings and bearings. who knows how hurt those are. looks like the engine had it rough.
was this dealing done through here or by a fellow member here?