If you hit up
Speed Hut you can pretty much make your own reverse glows from the ground up, but they tend to be a bit pricey. Alternatively, there's always Ebay, they are cheap, but you get what you pay for. Personaly I've bought reverse glows for my Grand Am (winter beater) from
Pro Car Parts and they worked out great. They have a decent selection, and the ones I have are still perfect after 3 years.
Also if you're going to look around online for overlays and such, I've found it best to look under 3000GT since they are the same, and Stealths just don't get as much internet lovin'. Hope that helps ya.
Melbowski