I have started a small service for quake live duel server on demand spawning and matchmaking.
Give it a try please at http://hurtmeplenty.space

Servers hosted in Amsterdam (have good connectivity, you can play from Germany for example).
It grabs statistics from qlstats.net.
Then it tries to match you to another person in the queue with the same statistics(max gap is 300 glicko points).
On demand server spawning work quite straightforward - it just gives you link which you send to your friend. When you click on the link - steam launcher kick you in the game.
Spawned servers got stopped on inactivity.

Any feedback would be appreciated :)
In case if it will be useful - I can add some requested features.
Also please let me know if you think we should host this not in Amsterdam, but at some other more optimal place?