As said, it is possible but it's not worth it. While the DC has the correct AI and stats, the pandemonium ubers don't.
The pandemonium AI is server side. They don't spawn the monsters like they should, thus making it easier. Also, they're apparently weaker than they should be. It's not worth doing if it isn't as hard as it should be (to me).
CaimDark, we're not trying to be mean spirited about this, but by forum rules the mod you are seeking is considered a cheat (it enables many other "features" beyond just the Ubers) and also because we are not allowed to provide technical support for mods, as has been noted by others.
I would suggest Google with the search term "Phrozen Keep". I believe that is as far as we can go.
Edit: This post should answer all of your questions, along with providing a link.