TI 7-8 player preset map

My playgroup is coming over for a game next weekend; we are used to playing premade maps found [here](http://www.astralvault.net/games/SA/maps.html) but this time we count a whopping 7 players! Since I'd like to have the map set up before the last arrive I'm looking for a good 7 player preset map, preferably with options for a last-minute 8th player. (similar to [this](http://www.astralvault.net/games/SA/Maps/5-Ultimatum.png))

I really like the level of interaction brought by assymmetric HS placement and would very much prefer it on the map we'll play

Any suggestions?