I got the ECU and TCM today, after over a month of waiting. Only had time to swap in the ECU with mild 87 tune on my v6, but already a great difference! The hesitation is mostly gone, the engine quicker to rev and shift. Feels like a whole new machine.
This weekend Ill have enough time to pull out the glove box and swap the TCM, but already a big difference. Ill probably be sending back the old ecu, certainly no need for it now.