Okay, here's the thing. I marked two points on the map (spots where I was going to embark). Those just show where the evil is, you can pick any part of it. Except one place; my reclaim is broken and will crash to desktop if you try to reclaim. So just pick a new embark.

PS. Oh, and the northerly evil area? I haven't tested it so I don't know what that has. Better off choosing the southern evil.
PPS. Been doing some testing and the north doesn't have much. Also, in the southern evil; you must embark on the evil savannah. The grassland does not have the undead, or rain.

Oh, and you better be grateful because I deleted this world and spent 20 mins looking through my recycle bin trying to find the right world.

Have fun.