D2:DC is also on sale at GOG for $10, along with the earlier Divinity games and
a bunch of other RPGs at 50% off (only for another 6 hours 40 minutes).
You will get a voucher to download the full D2:DC from the
Larian Vault, so you won't need to install/upgrade D2:ED/FoV first.
It is late evening in Belgium now, but you should get a response within a day or two.