Got some major work going on over the Christmas holidays, part of which will be rebuilding my 700R4. I've rebuilt a TH350, is there anything I should be worried/scared about when doing the 700??? Is there any MUST HAVE tools? On the 350 I just had to make a couple of tools...no biggy. Don't tell me to buy a rebuilt unit as I've already spent A LOT of money with TCI on parts...plus shipping a complete trans over here is out of the question!