newbie ready to stock my tank but very limited choice..

This is the list my local shop can get flown in

and they say its 8 pieces or more per species ..

the tank is rocky ..150gallons with a silica substrate...my tank is in the tanks section!!

Blue ahli
demasoni
geochromis moori
red peacock
Rustratus
Stuart granti blue
Tangerine
Yellow Prince
Strawberry peacock
Livingstonii
Usisya
Perlmutt
red empress
Auratus

looking through the list i thought prehaps the demasoni ..livingstonii and auratus might be too aggresive.

also i would not want fish that were a lot bigger than say 6inches .

so do u think there is a good balance somewhere in that lot??

cheers guys.