After a quick look through the other replies I don'tthink anyone has brought up one issue that stands out to me: the map requires conditonal borders for the housing aspect to work and to my knowledge, conditional borders are not possible yet on CC.
One method of getting around the copyright issue is to change the house and hotel aspect, why not try some other real estate development ideas, such as 4 hotels and 1 casino or 4 houses and an apartment building.
And it seems the squares making up the path is copyrighted... try ovals?
I would love to see this map done. I've tried 2 times with other graphics-guys, but it has never worked out.
You have a very different idea going on here, though. Neither of the other projects I was a part of used houses and hotels as part of the map. This is very interesting because now we have mandatory tags for attacking. I really hope you continue this one ManB, after all the ones you've started it'd be nice to get one in the Q-Bot!
I'd be willing to write the XML for this if needed.