Hey Sean -take a look at post 15 in the thread linked below. Cheaper than a new transmission.
https://www.ford-trucks.com/forums/1...-problems.html
I do not profess to know that much about transmissions, but you don't have metal, you have taken care of the transmission, and your symptoms match a LOT of others that relate back to (edit) pressure.
I would still be interested in all of the pump pressures (warmed up engine and transmission), but I will not keep pressing for that.
Also, check out post #7 in the thread below:
Direct Pressure Solenoid??? - PowerStrokeNation : Ford Powerstroke Diesel Forum