What i suggested was just an alternative to having to question the quality of the transmission build, then having to send it back due to issues to whomever you got it from wasting money and time, and then wasting even more time fighting to get it fixed under warranty if they are not complying like they should.
Since im mechanically inclined, been that way for decades, i've seen enough build videos thats given me 100% confidence, i'll take on that challenge, i'd love to rebuild my 700R4, even better than before someday when it comes down to it, but im in the same boat as many here of not having the proper space, but if i really wanted to, i'd make the time and space to do it.