Pretty sure this was the place that used to sell some pressure switches and such to control an RH, similar to what you did. If correct, I would guess that is what the "727 to 518" topic would cover.
Didn't see anything that would control an RE, though.
Love to see something on that. Not casting doubt, just never heard of it. That would be the first viable solution beyond running the OEM PCM as a TCM. Doesn't seem unreasonable to think they have some similarities, but I don't know enough about it to do anymore than guess.
Had a buddy that wanted to use a RE in a swap because it was shorter than an RH and moved the TC closer to the motor, making the rear driveshaft easier to fabricate. I spend a fair amount of time looking for a controller for him and came up with what-if's, maybe's and "I'm going to...", but never anything better than vaporware. Doesn't mean my Google-fu was strong enough to make it an impossibility, just sharing my experience.
