40G Long: Stocking Plans

I'll be acquiring a 40G long (48 x 13 x 16 - same footprint of 55 just a little bit shorter) within the next couple weeks and am looking for some feedback on whether or not my stocking ambitions are feasible.

Currently I have these guys - all adults - and obviously will be transferred to the new tank:

- Aulonocara Stuartgranti Blue Neon Hai Reef (Male)
- Aulonocara Stuartgranti German Red (Male)
- Four (4) Pseudotropheus sp. Acei (1 male, 3 females)

Alright, so here's the additions I'd like to make:
- Lethrinops sp. "Red Cap" (Itungi)
- Placidochromis electra
- Copadichromis azureus

So it'd simply be three males of relatively peaceful Haps, 1 of each obviously.

All feedback would be great.

http://cichlid-forum.com/articles/cookie_cutter_40g.php

I doubt that a 40G long is too small... I've seen dozens of tanks with similar configurations as what I'd like to do.

It's a 55 with a few inches chopped off, I don't see how that's a problem.