Wanted: Chrysler smallblock overdrive 4 spd. bell housing

Hello, I'm trying to find an overdrive 4 speed bell housing for a 318 smallblock, I'm a senior in high school and have been piecing together my 1976 Duster, it was originally a slant six automatic but I have a nice pretty orange 318, flywheel, overdrive 4 speed, and clutch kit for it, have got everything needed except the bell housing. Can anyone help me out? I'm also looking for a reverse linkage rod for the shifter.