Well folks, great success!
I picked up the drum I needed, as well as a few other spare goodies... Actually a lot of spare goodies
Ill post pics up once I get them off my phone, and add the info for the 2 tools ive made.
SO I got a good K1 drum with my mystery bearing, and began transferring over the clutches and pistons.. Checking tolerances as I go.
I got a spare pump housing/B3 piston assembly, and a few other goodies to keep as parts for the trans that's in the car now once I take it out. And a few spare parts for my 560sel; not like it needs it though.. cross fingers
One thing I did notice is the plastic support carrier for the B1 band (part between the band and the B1 piston, looked a bit weird?.. like it began melting.. Anyways, I got a new carrier while I was at it. I wonder if a old B1 band overheated or something?
Im just on hold now because I need to go pickup a 30mm 12 point deep socket so I can take the tail nut off, and just double check everything in the back is ok.