Massive oil leaks.

Wazoo - If the gaskets were leaking (not the front crank seal, rear main, etc) then they will always leak until changed. Seals can have oil pushed by them and still work - gaskets cannot.
A personal note - the guys here have spent years trying to help each other and "the public". Me included. Don't make things personal and don't take things personal on a public forum. That's true for any internet forum. If you have a problem due to your builder - talk to him privately and respectfully and see what he does/says. The money went to him and thus so does the responsibility to respond professionally and satisfy his customer. If you've had that long term business relationship I have to believe he'll make efforts on your behalf provided there's respect in both parties.