Dseries

Bare with me guys I am new to this. I have a couple of projects going on and I am sure that I will have more questions in the future. Right now I am attempting to mate up a 3 speed trans out of my 68 D100 to a 1989 318 out of a 1989 D150. I have a bell housing that came out of my 1968 which was mated to the original 225 and it appears that this bell housing will mate to the 318. Can anyone tell me what combination flywheel, pressure plate,clutch and starter I need to make this work?