cp_labor is a great map and definitely worth checking out, perhaps for the custom server.
I've played on it a few times recently and had fun. Its a granary style map.

http://www.fpsbanana.com/maps/37889

It should already be on the custom server actually.

That looks like a nice map, it looks well made and by reading some of the feedback on fpsbanana that he gots sounds like a good map.