incomplete 833 help?

ok, I just picked up a A833 4spd from an abody...but I got problems.

the tranny came disassembled and I got parts missing.

the first part of my question is can some one give me a better ID then just a a body 4 speed?

the numbers off the main case are: C99129 and PP8335333

the numbers off the tail are: c13212-3 with an XS under them

is this even nessary for me to get correct parts?

I did a search on here and it came back with some good info but I want to find a place that I can order parts from. also is there a good clear scan of the exploded diagram anywhere? and also can someone give me the discriptions of the number on the exploded diagram?

I think I got most of the big stuff but I am missing the input shaft retainer and the rod that holds the large gear cluster in place.

thanks for the help in advance!
Daniel