I wouldnt be so sure, good GTis aren't that easy to come by these days, and they arent cheap when they do crop up. So £200's worth of engine and £100 of bodykit and paint doesnt seem like that much.
Just seen white biscuits thread people charge like £80 for skirts and even more for the bumpers. Exhausts are expensive, manifolds even more so. Then it'd need front KYB's, springs. + Labour costs. My dad could do it, but hasn't anywhere couldn't expect that free.