Last time I saw Wizardry 8 was in "Het Computerwinkeltje" but they don't have it there anymore it seems. Last time I saw it, it also costed a good €75 (!!!). Never saw a game that expensive (for pc anyway).
Did you try calling Game Mania btw? they sometimes have second hand games, you might be able to find Wizardry 8 that way. Unless you tried that already heh.