its definitly worth having 'in stock'
get the pedal box, the cylinder on the pedal all the pipe work from it including the pipes to the brake servo reservoir and the reservoir itself as well, plus the gearbox (duh) and the cylinder on the side o it. Gearstick and cables too tho goes without saying!
Get on the corrado forums, trim bits n panels for em sell for mucho dosh! the electric mirror kit will fit a mk2 except the mirrors themselves and glass (motors out of the mirrors fit a mk2 tho) plus if it has electric windows nick the 1 touch loom & control box out o it. its hard work to remove in 1 piece but its worth it when you get it fitted to your car, the actual window motors wont work in a mk2 but the rado loom will work with the mk2 regulators.