It would help if you give more specifics about what you currently have for a trans, what type of use will the car get, power level you expect to get to with the 440. Many of us started with a moderate power level then modified the motor for much more torque/power.
You are not likely to find a "normal" local trans shop that knows much about a 727 from the Muscle car days. Maybe an experienced local Mopar racer?
For "normal" performance driving with stock level 440 power, a forward pattern, auto shift valve body is good. If you are an aggressive driver that wants to shift each time, a forward pattern manual valve body is good. Reverse manual is really for drag racers, or experienced drivers that have a car set up for that style.
My '66 Satellite street/strip has a reverse manual valve body, but it has 4.10 gears, 500+ cubic inches, easily starts out 2nd, and 10"(or now 9 1/2") converter.
I built all my own 727's in my bracket racing days, now have a CRT(John Cope) 727.
Cope, ATI, Turbo Action, A&A are all familiar with 727's.
727's are tough so you don't need to "over buy" either. Be honest about your expectations.