Perfect aquarium size for Tanganyika biotope

[Mantvis]

What is the best aquarium size for Tanganyika set up. Probably going to end up with either moving my Tropheus Ikola (23x) adults or starting a new colony (something from Brichardi family, can't resists those blue eyes) or getting Frontosas, blue zaire probably. Only one thing I am certain about it will be Tanganyika biotope.

Currently I was thinking it would be:

Length: 70-80" (180-200cm)
Depth: 24-28" (60-70cm)
Height: 24" (60cm)

What do you think?

I can easily get 80x24x28h, but I think its too high and shallow.
Or I can go with smaller ones (for costs) 60x20x20 (more then twice cheaper) and 60x20x24h.

I don't really want to go over 80" due to the fact that I might move some time in next few years and also dont think that it would look that much better or you might prove me wrong.

PICTURES ARE VERY WELCOME.

Thank you for your input.

 

[viejafish]

The larger the better, but no less than 75, unless you want to keep tiny shell dewellers.

 

[Mantvis]

Currently I have an 75 tall. Upgrading to minimum 100g, but more likely it would be a 175g or 220g.

Looking for good dimensions, because I am planning to build it.

 

[axs377]

I have 12 wc moba fronts, some comps, cats and a few odd balls in a 320. It's 96x32x24 heigh. Great dimensions imo. Of course bigger really is better. Next tank is going to be 120 or 144 long.