I think if you went something like:
1) Alabama, Mississippi, Missouri
2) Indiana, Kentucky
3) Michigan, Minnesota, Iowa, Wisconsin
4) Asia, Russia, Caribbean, Mexico, Central America, Pacific Islands
5) Louisiana, Arkansas
6) Texas, Oklahoma, Nebraska, North Dakota, South Dakota
I think all six of those combinations are the only ones that can be competitive with what is already off the board. I just think what is left isn't viable after I put builds together for existing option. They are also all geographically viable.