I've got one.
5k mile TEP build. $1800.
It will come with a 7/8" gearset, and you can pick the ratio, unless you want something different. It will also have new 4th clutches.
At the time it was rebuilt:
-Full High Performance Rebuild
-12 Clutch 3rd clutch set
-Sonnax TCC apply and regulated apply valves
-All new solenoids
-Transgo shift kit and boost valve set
-New forward apply band
-Intense input shaft
-Custon built Precision Industries torque converter with 3200 stall speed
-Hardened 4th Clutch hub
-Hardened pump shaft