seeing as you have a soft spot for the mk2 fez stick with that and depending on how hard you want to make it and how many spare hours you can devote to it stick a zetec turbo/supergharger in the back run it on a foci rs box so easier just to run hydrolic clutch and cable select then you'll have rwd and the weight will transfer over wheels for sprints or quarter stuff, if you've got a bit more time try a new st engine but running 400@wheels in rear too either would be fun