Probably stupid to post here, but what are you looking for on your build? I have a cousin who is a genius. He has a car engine that is ridiculous parameter wise, and has a few patents that have made him a millioniare a few time over. If you are running into issues I'd be willing to pass on what you are looking for, and from what I know he is not a money guy, just enjoys what he is doing. ie he maybe able to help and could care less about getting paid. He and one of his brothers had a plane long ago. They managed to never get licenesed, never get insurance, but did manage to flip the plane, and total it.
Didn't make or break them.