Welcome Napo_25 I found my new set in the UK from a Scirocco R which I paid 2800£ which is cheaper than a set of leather Recaro Sportster CS here in the USA since you have to also purchase seat rails.
I had the seller drop them off to Mark the owner of Awesome GTI Store in the UK and he crated and shipped them to me in California....btw he is a awesome dude for helping out when he could of said fuck off.
I found sets in Germany but they were in bad used shape and people were asking too much for them, I know I lucked out finding my set.
https://www.ebay-kleinanzeigen.de/s-vw-schalensitze/k0