yeah if you can get a whole donor car would make it easy. Everything would unbolt and unplug from the other car and bolt in and transfer straight into your car that goes for the 1.8 8v, 2.0 8v, 2.0 16v and the VR basically all mk3 engines use the same fusebox setup and everything.
Doubt you would even need to find a smashed up mk3 ive seen them go with tax and test for £300 so try and find a rotten one and your onto a winner.