wiring loom, rs turbo engine, turbo, exhaust system, all inlet manifold equipment, metering head, injector pipes, fuel filter, fuel accumilator,all cooling and boost hoses, fuel pump, radiator, intercooler, BRAKES, suspension components...... Theres a list to start... better off buying a spares or repairs.....

Im sure people will add to it though... Think i have forgotten some

Its fairly easy, I converted my cabriolet in around 2 weeks with help of a few mates and in my spare time....