Movable Light Racks

[gimmito]

I'm sorta in a quandry regarding a light rack for my 450 L shape display. The shape of the tank makes it hard to just use a unistrut and just attach a aluminum light rack to and slide it into the garage b/c of fire rated doors. I've thought of using 2 separate heavy duty drawer guides (1 front/1 back) that extend from 2' to 6' also.

Here's some pics:

Any thoughts ?