Same problematic situation as when you buy a car from a friend or family. One tends to overlook the problems so when the car crash down all you're left with is a bad taste in your mouth and an aching behind.
You guys have become "Luthiers best friend" and can't take a step back to see the short-comings.
I'm aware that this thread ain't progresing anywhere but I like to b*llsh!t so...!