If i were starting over from scratch I would have taken this to a dealer first to get the diagnosis and full SDS report.

what i got was 3 indy bottom line opinions, little factual data and all somewhat different but totally confusing to a lay man.

I left the vehicle at the third where i was promised a working vehicle with a 24/24 trans warranty in a week for 4500-5000. they were kind enough to call me in after tearing down the trans to pieces/parts.
Assuming what i saw was all mine, all 3 indy's were correct in their diagnosis of TOAST, however they each got there. The overdrive was completely frozen, many gears and the planetaries were completely chewed up and the valve body was completely jammed with metal chunks. The bottom was full of metal which included several bearings which had fallen out of their races. I am frankly surprised i was able to limp anywhere in the vehicle.