Have you got a link to the Led modules that you're planning to run? I'd like read up on them a bit, and determine their lumen/$$$ ratio.
I got it for ya! The prices are below along with a low quality picture of the modules and their design. I will of course be removing the U-Bar in the back as I plant to place it face down onto the top of the acrylic tank and only have 4 inches of clearance from under hood. The unit gets up to only 50 deg C (122F) so it will be a bit hot to touch but nothing the acrylic can't handle.