I found the seller in a facebook group. He had put up a few for sale posts about ebm, industrial and eurodance. I sent him a private message asking if he had any house or techno. I was surprised that this guy (in his mid 60s) had such a broad knowledge. He sent a batch of pics, and i pretty much picked all vinyls I didn't already own.
And in addition to these ones, I snatched duplicate copies of some aux 88, robert hood, model 500 and drexciya on CD as well. I'm hoping to be able to trade Drexciya - The Quest for some other sought after items. I payed around 4 EUR a piece for all items. I remember paying close to 100 EUR for The Quest roughly 8 years ago.