Hey Altezzaclub if it is of any use to you I have a Toyota manual for a 4 speed gearbox, manual no. 96015-1, that i can take photos of. I also have a Clymer Publications manual which has both T and K series boxes in it, it seems pretty thorough, and a haynes manual, 92725, which has both k40 and k50 boxes in it.
If you want anything happy to copy and send though.