I'm in the lighting business, so...
For $600.00, you could pick up a couple of Altman Softlite Jrs. and some cheapo stands. Nice little fixtures.
You could go to Home Depot or some such and buy 2 or 3 of those 500 watt quartz worklights for next to nothing. Then, you could buy, or fabricate, something like this: http://www.calumetphoto.com/syrinx/c...type=SPDSEARCH.
Put the ceramics in the tent, blast the outside with light, shoot away. The Altman Softlites are nice, but light is light. What you pay for is how the light is managed, and in your case, the task is fairly simple.