to go the 2.9 v6, i take it you want 24v? as if not stick with the 2.0 lol

if its the 24v you need
v6 xr4x4 gearbox and props
front and rear diff,driveshafts
engine cradle, steering rack
flywheel and clutch

24v bits needed
engine
loom and ecu
most of the ancillarys from a granada

cossie is easy, everything for a 4wd cossie lol

its just engine looms you need, granada i dont know how hard to do, but a cosy is only 6 wires and will plg straight up alls you have to do is swap 1 pin on a connector