I own a 05 Ka that has done me well but am now looking to get just a bit more from it. I want to add an RST engine as the normal 1.3i making 70bhp (corrected) just isnt cutting it.

What kind of work is involved and would I be better off buying a RST that is due to be scrapped for the wiring loom, breaks ect?

Would I be able to do this myself as I have no idea on the technical side and what would the costs be?

Any help is appreciated.

JimmyJay