Another option would be to buy a left hand drive 2 door Syncro and convert this to right hand drive,
personally I think this might be the easier path to follow,
basically all you need is a LHD 2 door Syncro & a RHD Golf 2 to swap the Dash, Steering & brake master cylinder over,
obviously it is a bit more complicated than this, but far easier than cutting out and welding in a new tunnel & rear floor even assuming that you can find them!