We just recently took down our inwall SW tank. Since the remaining dregs of coraline and aragonite lend themselves to African cichlids we are going to take that route. We kept cichlids about 8 years ago, so it's not new, just forgotten....
I am thinking peacocks for a more placid tank but I've never really liked the look of them much.
So, if it were you, what would you end up with in a tank this size ? We have a sump and bioballs on it. Some good lighting which could support plants..