personally I don't think this setup will work long-term. Jags, even females, need a huge territory to get along peacefully with other cichilds. I had a midas, jag, firemouth, and JD in a 125 a long time ago...the midas and jag I both believe to have been females...the midas ruled the tank for the longest time but once the jag got to around 6-7" it took over and forced the other 3 fish into a corner while the jag swam around the other 3/4ths of the tank.
if u buy them all as babies it would work out for the best. regardless of what type of cichlids they are they will all tolerate each other much better and u will have a higher sucsess rate