Your better off taking the parts from a 2.0L Mondy engine.
The simplest way is too swap the cams, throttle body and I believe the ECU. Not 100% sure if it will run ok without a re-map but it's probably best to get that done. With a bit of luck you may pick one up off ebay thats been chipped for a few extra horses and increased driveability.

As for where to get them -
ebay is a goldmine or just go and check around a few scrapyards.

Just out of interest where are you from?

Cheers