i hear ya on the flamebacks hopefully they will hide out enough! if not i can switch em over to my 75. they really are immpressive ill post some pics as soon as they get settled in
Personally, I wouldn't wait and would put them in your 75g right away. Ah yes, they are nice and you might want to look into getting some , Xystichromis sp. "Kyoga flameback" which exhibit much more color than the Haplochromis sp. "flameback".
Another nice addition to your tank would be some Astatotilapia Burtoni. A non Victorian look-a-like that will definitely liven up the tank and will provide a color missing with your stock list.