Wow! That's a lot of info to digest!

The widetracking part i've sorted. Hubcentric spacers and et15 wheels.
So could I not just fit a 1.8 blacktop to save having to get a sump, water pump and clutch? I assume I'd need a 1.8 flywheel for the clutch anyway?

When you say a zs loom... Do you mean complete or can I just take the engine loom?

Thanks very much for the replies everyone, keep'em coming!!