kuhllax24 - Of course we care! If we're perusing the diy type posts, then that most likely means we do that sort of thing ourselves. And if we're into diy repairs, sooner or later something like this will happen. It's frustrating and humbling, but it does make the ultimate fix all the sweeter.
Pardon the existential tangential reference: I remember reading a book called Moments of Doubt about mountain climbing. The author writes of the pleasure of overcoming the "moment of doubt" in a climb where he is uncertain about his chance of success. The pleasure of overcoming the moment of doubt makes up for all the angst and/or occasional failure. A lot of times I feel the same way with car repairs.
Looks like you are backing away from this repair, and I understand. But just for overall knowledge here are a couple of posts you might find interesting. Even though these are on the 6HP transmission I think they still have some general relevance.
This link has some interesting posts. Posts 18-20 detail some diy "fails" so that you don't feel like you're the only one having troubles. Post 22 has a great pdf link from the Calif. Trans. Supply Comp. - worth looking at even though it is the 6HP. In particular, they make the point about how the gap between the wiring harness and the mechatronic sleeve should be no more than 2.5 - 3 mm. And of course reading the entire post BabyUnicornTaco has a couple of initial failures and moments of doubt before Ultimate Success.
Another interesting link is here. Here the relevant part of the posting is that the AC condensate drain comes out just above the wiring harness/mechatronic sleeve connection. As I mentioned earlier one of my Moments Of Doubt was seeing that AC condensate drain and thinking it was transmission fluid. So I did the repair all over again - unnecessarily.
Sorry about the Tow of Shame - but now you're In The Club!
Good luck and hope it gets sorted with less cost and suffering than feared.
Stephen