when i trun 16 im buying my uncles old 6(30-35)c(i-si) not sure exactly what and dont know exactly what year but it has a messed up automatic transmission. i want to put a manual transmission in its place. i know bmw put manuals in their older 6 sieres cars so how do i go about doing this what parts am i going to need, how much labor will i have to put in it, and if anyone has any good websites to buy parts from that would ba a help too, thanks