I think maybe a little place for the half-orc player might be an interestin addition. I was picturing some along the lines of a tribal area that consists a few huts surrounding a large bonfire in a muddy wild area... just a thought

With the orc army trying to eat the dwarves, I'd be very surprised if people of the Marches would stand by and let orc-blooded people congregate together if they ever found such a place

yep... its more fun to play as the outsider looking to find his place in a world that doesnt really accept him.