Easiest way would be to get a mk3 subfame, with all the mounts and it should slot right in, maybe few cut & shuts inside the engine bay, as for mk2 shell would be best to reinforce n sort out before transplant, I've done the same conversion myself but tore the engine off the frame since it's supercharged & want properly reinforced to the chassis, had to rebuild anchor points, will tryn get you some pics tomorrow at some point, and the parts paperwork listed, best of luck with your project