Who's familiar with Chevy Greenbrier?

[joesscamaro]

I was doing some poking around on Craigslist and saw an ad for a Chevy Greenbrier Van and Truck. I have never heard of them or seen one. I opened the ad and saw the pictures, and they're actually really cool looking. I know nothing about them, but noticed they are part of the 60-66 family and thought I'd ask if anyone knows much about them. This Craigslist ad is saying they are rare...how rare are they? Anyone?