Mounting LED fixture

[Coasting]

So my LED's finally came, YAY!

New tank is 36 x 18" With center brace
LED fixture is approx 22 x 11" Has 4 spots to mount cables to hang the light. (vaulted ceilings in this house)

Obviously want it mounted right in the center 6-8" above top of the tank.... I was originally going to build a canopy and just rig it up in there so its nice and hidden safe from the cats and what not and doesn't bug you if you're sitting below light level on the couch.
However I was just informed that my idea to build a canopy is ugly and stupid and I should just throw a few 2x4's on the top of the tank, paint them black, and sit the light on that.
Really?
I hate this family....
Anyway...
What kind of rail systems are out there, or any other ideas that might work... I dont think the rail system for the SOL will work for this light, I want something thats sturdy, this thing is heavy, something that will allow me to take the light off if I need to re-arrange anything in the tank... I dont know.. What else is out there? What is local and wont break the bank? I really liked my canopy idea... I should just do one up on monday when nobodys home... anyone want to come help? HAH!