Been thinking about this. Normally, I like to try and preserve some geographic unity in my tanks, but I don't think this wwill work here (although feeding Caribbean coastal fish to African interior fish would be an interesting reversal of history, as it were.) So I am planning the following:
Top Stratum: 2 ABFs
Middle: 1 Leopard Ctenopoma, 3 Festivums, School of 6 Rosy Barbs
Bottom: 2 Bristlenosed Plecos, a Red Tailed Black Shark, and a Striped Raphael (or 2 spotted raphael) catfish.
I am pretty sure that will work. The barbs, though, may not be the best choice for the schooling fish. I have considered Diamond Tetras, but I think I am going to use those in my 75 next spring/summer.
I'll add the barbs first for cycling, then the plecos, the schooling fish, and then the rest as I pick them up.