OK, so I finally located an 8500 locally which looks OK.
The seller won't mind to look at a gazillion of old SATA and PATA drives which I do have - but don't need anymore.
Hopefully he has an AGP PC to flash the card.
But it would be good to know exactly what to flash the card with, so we won't have a brick.
This is EXACTLY the card:
https://www.ebay.com/itm/392488605215It is not far and the price is what we agree upon (not what you see on the fee-Bay).
But I do not want to waste his time, my time or brick the card.
This is storage-related because once I finally revive my G4 MDD, things with storage will progress much faster
If everything is OK with him I will probably pick up the card on Saturday (or when my wife agrees to loan me her hybride in exchange of my gas guzzler for a day).
The gas is 3x or maybe 4x here compared with what it is in the States, the salaries are about that times less.
Luckily not working for a local business!!!