Been there too!
Green,
I had to go in twice for my rebuild. Stick with it, you will get it! I'm glad I did, my 2-3 flare is gone and all the shifts are smooth.
Some advice from experience and the forum:
1) Trace your new seperator plate on cardboard and then poke holes for all the bolts. Also, number the bolt holes with the torque sequence number. this made it much easier when you are on your back try to get the right bolt in the correct location and also the correct torque sequence.
2) I used M6x55 (6mm = 0.236", alignment pins are 0.235 & 0.248") stainless steel shank bolts to serve as a poor man's alignment pins. The bolt shank should be longer then the thickness of the valve body. The bolt fits snug in the small pin placement and is loose in the large pin placement. This can be used for installing the VB plate and then the VB assy to the tranny. Just make sure the bolt is centered in the large hole when tightening.
3) Go around at least 4 times with the VB bolt sequence. I made my last pass at 2 lb-in below the top end spec.
4) Cover the CAT with tin foil to prevent the ATF fluid from showering on it.
Good luck,
BillJ