Nothing wrong with that old tech........a 60 still flat out works with the right combo. Very few max out there turbo first before buying a "cool guy" turbo. Not to mention a 60 can be had for a very good price.
All I've ever run is 5/30 Pennzoil or Castrol GTX dino oil with a Wix 51036 and a bottle of ZDDP every change........pushing 120k miles stock unopened block
Dave Husek was a HUGE help to me. I built my trans myself and he guided me every bit of the way and supplied me with everything I needed to build a great shifting trans. Answered the phone EVERY time I called with a dumbazz question too!
JMO, but powder coating an aluminum transmission pan is really defeating the purpose of the pan in the first place. The powder coat will act as a barrier and reduce the ability of the aluminum to transfer and dissipate heat.
What's the issue with your original? If its working when plugged in but not driving the mast then all you require is a cable replacement. You need to remove the unit anyway. I did mine this past summer and it works like new.