If you ahve to ask how big of a task this would be, you obviously have no idea what you're getting yourself into. Can't believe I'm even wasting my time on this post....
You'd have to build a rear subframe from scratch, custom motor mounts, custom exhaust, find a way to do the shift linkage, a ton of wiring, all new fuel system, etc. Not a project for someone that's asking how tough it would be to do it... Maybe I'll do it with my parts car just to show how tough it is.... I have a spare engine I can throw in that thing...