There are enough Dutch and German companies offering Turbo conversion sets for 6N engine's (only the MPI's), but I don't think it will help you much since your not from Hollna dor Germany.
But there is 1 important thing to keep in mind if you go through with a turbo conversion on your original 6N engine. If you don't reinforce the lower part of the engine (crankshaft, clutch etc.) it isn't wise to go more then 0,8 Bar on turbopressure. Mate of mine from the Polo Club Holland had a 6N 1600MPI engine and fitted a turbo on this. Got 120 BHP with it, and a s**t of torque. On a sprint he made any GTI suck his exhaust, but on top speed he had to suck the GTI's exhausts, but what the fun of drivin if you aint taking no corners and smashing the pedal after the corner
