4 0r 5 speed in my 72

[ol yellow 72]

ok guys ive decided to go from automatic to maunal in my 72 gmc, i have a million questions but my first is will a 5 speed from a 91 chevy work, and if so what do i need to do to make it work, im running a 454 h.p. and courious what will be the best set up to use, also i haave a low hump, will that have to be modified?

any advise will be great.