LOL, I am going the other way ! I am going from manual to auto on a V8 !
Transfer box is the same, you will need the gearbox obviously and a new pedal box. Clutch, go for a new one. Clutch master cylinder (Disco 1, not sure about later models) you can remove the gear oil cooler or seal it off.
You will also need the manual gearstick knob and gator.