Have you made up your mind on your final stock yet?
I have a 7 footer,although a big tank, some of these cichlids soon make them feel small.
Personally I believe less is more.Some of the nicest tanks I see house 1 or 2 different species
of cichlid only.The results look more natural and the fish tend to prosper.
I often see tanks full of all kinds of cichlids from different continents, not only does it look unnatural and cluttered, I believe often the success of these tanks is short lived.
Fin damage,bacterial issues stressed fish is not the goal.
Obviously this is just my own opinion and others will disagree, but one piece of advice I would give is think carefully about your stock and don't try to cram in all your favourite big fish if you are looking for long term success.
P.s
I am still eagerly awaiting Franks come back.