Well, it's too late now, but...

At Home Depot, you can buy a cabinet made by Mill's Pride. There are 2 models well-suited for growers: the C13 and the C22.

The C13 measures 24"x30"x~65". I have used it several times and get yields between 4 and 5 ounces under a 400W HPS and a Waterfarm.

The C22 is wider, not sure of the dimensions.

I did hear a rumor that Mill's Pride discontinued the C13 and C22, but they may still be available in your area as stock they are not replenishing.

The C13 costs $99.

I would offer people to pm me for instructions on how to set it up, but this site doesn't offer the pm feature to non-paying members.

I miss Overgrow. Sigh...