I like what you have started here and wanted to suggest a few things and ask a few more questions.
1. While back saw an attributes guide on mxo vault that was more in depth then any other description I have seen. I don't know if that info is still current because of patch changes, but it is probably worth taking a look at for those who are into character planning and building.
http://mxovault.ign.com/View.php?view=GuidesArchive.Detail&id=33&category_select_id=10http://mxovault.ign.com/View.php?view=GuidesArchive.Detail&id=3&category_select_id=42. I'm wondering if you are planning to include the constructs in your maps, since technically they aren't part of the city and thus don't fit into the city guide. However something you might want to look at, and for all I know may already be.
3. I'll think of three later... suddenly went blank but could have sworn I had some other input. Oh well. Just food for thought