help!! swapping a 56 1ton 4spd to a a/t

[smith&hammer]

ok i know somebody has had to do this. am putting a v8 in a 56 1 ton panel and would like to also go with a a/t like a 700r4. the problem is the e/brake is on the 4 spd. do i need to change the rr to a late model? i was told that you cant put the e/brake on the original rr. im also going to change the r&p to a lower ratio ( if i dont have to change it) what is avail for those h072's.
signed: cant drive 55!!! anymore

why buy new when you can drive a classic