halide

Just picked up a 60" acrylic 125 for less than what Caleb (a.k.a. "Warbucks") spent at the auction yesterday - very good shape (the tank that is) but has one six inch scratch and could do with a good buffing to make it more or less pristine. Would really appreciate a solid link to a proven DIY...

Three Current 150w metal halide pendants, 10k blubs. Ceiling mount, adjustable height. Bright shimmering light effect $325 for all three, will not separate.