ravells,

I'm not sure.

If someone already had worked on one, or was willing to jump on the opportunity, I'd be glad to take advantage of that initiative.

Otherwise, I've been thinking about how I might do it myself, but keep getting frustrated by the lousy quality of the available images and my own lack of initiative -- partly due to my lack of experience in creating such a map.

I have no objection to you moving the topic if you want.