Just changed my extractor and downpipe(plue the flex joint) about 2 months ago.
So I have the original GTI parts you're looking for, but your offer price is a bit too low.
PM me with an offer and let's see if we can make a deal ;-)
Helping a fellow trekker with problematic awd transfer box.
It's the small gearbox that mounts onto the main auto gearbox, with 1 output to right driveshaft, and another 1 output to rear longshaft.