If you end up going for Rhinos, and in case I'm not around much tomorrow, the 11 Land + 1 Water version I've done of that map is already on the llamaserver (it's currently 5 from bottom at time of writing), and here is the download link to the image you will need. (as I've made some changes to the original image)
http://forum.shrapnelgames.com/showpost.php?p=804192
Not sure if it's 100% bug free as it's still very early in its first MP game right now. No bugs reported so far though. The map is based on the 'fixed' version of the Rhinos map, so hopefully there are no bugs left in it. I checked all the connections and they all seem as they should be, so if any errors are there then they are likely to be missing terrain tags. Although certainly not impossible for a connection error to have crept through the net, but I hope not.