[scouskie]

It is possible and has been done in USA can't recall the forums but look for 850 +t conversion,
Out of preference I'd stick the turbo block you have into your car and go from there

I'm not completely clued up on the European 2.0 t5

Is your car auto or manual?
If do have twin ecu for fuel and ignition then you will néed to swap entire loom from fuse box forward (whole engine bay loom)
As there are a good few wiring differences

The motronic ecu will not plug into the current looms..
Having just done this myself I looked into adding the extra wiring but too many differences and dudderent plug connections