Well, Here is my suggestion. This is the Mage Training Arena ( I think that's what it is called ) and it seems pretty good. All that would need to be changed is:
- The door to get inside this building needs to be opened or removed.
- When you go to the back side of the place, there are 4 teleporters.. I'd suggest you remove them or simply make them teleport links to various places. (Training Area, Pk zones .. edge for example , funpk, and others)
- I'd suggest that you make the upstairs of this place as the shop zone. It'd be a great place and it saves space.

[Edit] I have no clue if this picture is visable to you guys.. it shows up as a picture box.. If it shows for you than good. If not, then it should soon.. I'm lookin into it :l. (A suggestion is to have an instert image .. that allows you to browse your pictures.. This would be less of a pain in the ass to do.)
I like the idea of the insert image from your documents. Also, no I cannot see the picture :[