Change a 904 to manual valve body

When one of my customers starts talking about manual valve bodies, I just go into bored mode. In EVERY case they are considering it because they are too lazy to figure out the kickdown linkage. EVERY CASE. They all install their own transmissions, and that's great, but I tell them to google it or youtube it for answers. The conversation usually starts out with them saying they're going to leave the kd linkage off and just manually shift it. Then I answer that I don't want their business...then the manual vb rant...then I tell them I have to get back to work...