One of rallypanam's friends (I think, right Rob?) put one of these on a van and cut a hole in the roof where he actually does have a pop top van. I thought that was a clever idea, but only if you're willing to butcher your van roof.
Got any pics of that?
BTW, these are all over eBay these days, branded under different names. I have seen one, albeit a direct no-name Chinese knockoff, go for about $8-900. I thought about bidding just to check it out.