As Willis has mentioned ask at the LFS what they can order in for you
You've got lots of options for cichlids, you could mix it up or go species only and get some breeding action. I'll list a few ideas I would be entertaining if it were myself. I am not an expect, this is just what I have seen working:
1) Breeding option 1, get some Geo "red head tapajos", high ratio of females to males is the preference I think, about 6 in total maybe. Nice pics here:
http
/www.cichlidae....php?f=5&t=4447
2) Breeding option 2, get some Roitrell Sevs (ask Willis/Star4!) - star4 has a ongoing post here but not many pics:
http
/www.fishforum...74dbec65c02373c
3) Mix it up and get a variety of SA's (less conflicts between cichlids I think)
4) Mix it up and get a variety of male CA/SA's, what I've done but not sure I would do now
5) Mix it up with Tanganyika and Victoria cichlids
There are more options but these are what I'd be contemplating if starting with a fresh setup.
I started with option 4, I currently have a juvi Firemouth, Blue Convict, Port Acara and Geo "Red Head Tapajos". They are growing up together, and although there has been some aggression between them a few tank decor changes have helped a lot. I am also in the process of getting a bigger 5ft tank as these fish will soon need it, plus I want to add to it. I did have "dithers" by way of 6 zebra danios for a time, and they got ignored by the cichlids. I think with Balas you wouldn't need to worry about any hassle of any cichlid...?
In your position, where getting fish is difficult, I would find out about the LFS doing orders for you. Then maybe go with a breeding tank with a group (or two?) of same species cichlids you could order in one batch. Are you in a position where others might want to buy juvis off you where you are? Willis could both a group of Redheads and Rotreil Sevs co-exist in the same tank? That would be awesome!
Edit: see this youtube vid, big 1000L SA tank with adult geos, sevs, other indivduals and lots of other non cichlids, just gorgeous:
http
/www.youtube.com/watch?v=oGMvLG09PiQ&feature=channel I say get geos first, then add some sevs after a bit