New Tank, all the toys looking for everyone's input!

[Gizmoh]

So I have been doing a little research and I think I know how I want to run the tank if it will work. I would like to use the coast to coast style overflow box ("L" shaped self) but only go from coast to center. So looking at the front of the tank it would be from left side to center. This would run the beananimal overflow. For the returns I was going to do one coming in from the back at the top right with flex loc-line for positioning and one coming in from the bottom, at back center. I was thinking of piping in 4-6 heads at the bottom of the tank facing back at the rock work. I am not sure how this back pressure would affect the flow though. For these heads all the plumbing would be in the tank under the sand bed with minimal plumbing running from back to front. I am sorry I am bad with google sketch or I would draw this up.

Any input from anyone that understands what I am saying would be wonderful!

Thanks