Stand looks great, how come you're not putting ply on the top?
And for the lighting, if you want the shimmer and shadow effect of a halide then have a look at LED floodlights, I'm sure there will be someone selling them in Oz. You could probably get similar or more light from a couple of 10W or a single 30W LED flood and use about 1/5th the power, and still get the shimmer effect.