By now we are talking about 2 different solutions.
And also i wrote to simbin and told them about the problem... again...
My prefered solution is that we "clone" the official setup-server and let it run on our own server. For this solution we need the original setup-server working at least for a short time to "rebuild" it.
The 2nd solution would be a setup-database which you can use in the AutoUpdater like it's already done on the bockbierbude. That means you could submit, browse and download setups in the AutoUpdater and use them ingame.
These are the 2 things we are talking about. If Simbin starts the original Setup-Service again we will have a look at it and will try to clone it, this would be the best solution i guess.
We will see what happens in the next few weeks