I know what you mean. Near the end of my working there, my boss had problems with rebuilders & he started doing just that, having the customer buy it & do like ya said. Now if we rebuilt one, there was never any issue that I can think of. You know how it goes, you trust your own work rather than someone else's. Even Harley has a remanufacture program in which ya send them the motor & they have someone rebuild it & at the dealer I worked, there were issues with remanufactured motors. One guy had to have it done 3 times before they got it right. I think the Motor Company had a shop doing it somewhere's in Milwaukee.
I get those pics right, I'll post them. I'm happy for him, he did real good for himself.