904 Trans rebuild help

I got the front pump out I ended up have to hammer the tail shaft and get the pump to drop out. I do have a couple of other questions that someone should be able to help, i hope?
first on the back band I don't remember seeing and I don't have a flat metal keeper piece. I know one should have been there but I really don't remember seeing it in place. So the question is Where can I get one?
Second ? on the washers between the clutch back show a lot of wear, I don't see a replacement washer in my rebuild kit. So my question is where can I get one of them also.
Thanks