Local builder that (machine shop/engine builder, catering to the race track crowd) will go through it for $600. Having sold a lot of "kits" from NAPA back in the day, I know stock parts generally aren't that expensive, question becomes what really needs to be done to keep it from failing.
I'm not sure what stall speed converter to go with....
Trans Brake: yes, no, maybe?
Valve body modifications? (preventing 3rd gear converter lockup)
Factory Lock-up Shaft?
I've been told something to the effect the later AOD's had four pinion planetary gear sets; I think the replacement trans out of the F150 has the updated gearing.
I can put 'em in, take 'em out, adjust the linkage, or anything else service wise, but once inside I might as well be playing with Nuclear reactors, 'cuz I don't know shit.