How should I hang my lights?

[MuralReef]

So I have an Aquamedic 3 lamp MH fixture and it is heavy. I can't figure out how to hang this over the 180 that I am building in the school library. The ceilings are very high so I can't mount it to the ceiling. Plus I want a canopy of sorts so the kids don't look directly at the lights. I will also be using 2 48" LED stops to supplement and would like to use these. I have thought about making a frame out of aluminum angle iron too. Any thoughts or ideas would be great and keep in mind I want a clean look since this will be in a public place.

 

[Reefing Madness]

Way to many to chose from really, but you can look here for a bunch of ideas.
https://www.google.com/search?q=mou...i=cjNzVZ6UC8WpogTD7YKgBQ&ved=0CB0QsAQ#imgrc=_