Dont waste your time buying bits and bobs here and there.. Get everything from the one donor car.
Starting from front...
Get Flywheel, Clutch, starter, Gearbox, all linkages and gear stick, Gearbox cradle, Prop, and rear diff.
Try get as new a car as possible, apart fro mileage, older 6spds can give diff trouble.
But seriously, do a deal for everything from the one donor car,
Put around 200 euro aside for Physio visits after lifting the b@stard.