first of all: i hope this name is not taken, yet.
I made a quick concept of the map:
i mapped the basic concept (no textures yet) to get the scale quite ok..
still needs fiddleling (especially the underground-part), though.
Colored minimap is as following:
some more images are under:http://pwning.de/stuff/mapping/seaside/
testserver (4.1) is running under:
What do you think about it?