Sorry if this is in the wrong section, wasnt sure where to put it.

I was thinking of getting rid but this opportunity may of come up instead

I have a Focus ST170 and was wondering if i could get hold of a mk1 RS donar car whether everything would fit straight under? I know it wont be this simple but would it be a case of rwmoving the front subframe of the rs and putting it under my 170 or would it have to be an engine out and put it in my car? I know its going to need wiring etc and its not as simple as im putting it but wanted to know if it would fit ok.