First off, pictures or we'll call you a LIAR! :lol:
I had 4 MP40's in my 200g, two creating a wave, two on reefcrest. I would go the other way, waveboxes on the end creating a wave the long distance, MP40's equally spaced on the back walls shooting to the front. I'm with Jason though, and I'd think about more flow eventually. For now, yes it would get you started. It partially depends on the tank and how big of a wave you can get rocking in there.