jensen,
Most video set-ups on Ebay will not have the camera and audio quality required by video MSCs. Not every PV-500 is the same!!!!! Some versions have long ago been dropped as recommended when they were found to be failing and/or did not have adequate camera quality.
Do a search on the forum for "greyhawk" (or grayhawk?) for "all dates. Then contact the folks at that company, which specializes in video equipment for MSers. They have the right stuff at the right price and are endorsed by several video MSCs. Don't waste money on Internet bargains that will not get you the return that you want on your investment.
Based in MD, near DC
Shopping from the Carolinas to New York
Have video cam; will travel
Poor customer service? Don't get mad; get video.