Howdy Steve Cass (chgr1) here from Cedar Creek Texas. I just finished the installation of power steering in a 64 D100 225 /6 with a manual column shift using the toyota power steering gear.
All parts were ordered from Mid 50 http://www.midfifty.com
Part Number 94620 - Conversion Kit - contains mounting bracket, pitman arm, sector nut, bolt kit (gear to bracket & bracket to frame) and universal joint adapts 11/16 36 spline to 3/4 inch round steering column shaft.
Part Number 4628 - Hose Kit - contains pressure and return line, clamp and pressure fitting adapters.
Part Number 4621U - Used toyota power steering gear
Power steering pump & engine bracket- 87 Dodge 100 /6 - purchased from salvage yard