Hi Stu
engine bay loom is definitely not a mex one, although as Mexican Gerbil says, if your not bothered about it being correct, you can make it work, front to rear, operates back lights, reversing lights and fuel tank sender, you would need to tape them back up and put them in tha car to see if the wires still reach, they can be extended, then appropriate bullet and spade terminals fitted, the under dash one would need looking at I real time, compare what it runs as to what its supposed to and identify everything before saying if it needs anything etc