Topcon TL-20DE Info Please

Hi all. I just bought a used Topcon TL-20DE. It came without manual(s) or a
case. I have e-mailed Topcon, so far they are ignoring me. Tomorrow I will
check my local repair shop. Tonight I ask you.

Does anyone have, know of, or know of a pontential source for, manuals,
copies of manuals, and/or a case for this instrument ?

I discovered after it arrived here that it has a removable tribrach. I have
limited knowledge of tribrachs. Are they all compatible ? If not, what is
the designation for one that will mate with my Topcon's ?

Thanks for any help.
John