1967 Chev g10 van- conversion??

Hello anyone ever see or know any company that did a conversion(camper Type) on a 1967 chev van when they were new?? had an alunimum pop- up top and stove,sink ?? any info would be apprecieated- did some ford vans also - west coast areas-washington/ oregon im guessing-Thanx,twinpilot001

 

There was gypsie, freeway flyer, turtletop, tec ( travel equipment corp.) Is it rectangular and pop straight up or does it fold from the middle? Hard to explain but there was a calthorpe top from tec on fords, dodges and chevys each a little different. Is this the guy in Spokane with the two vans for sale, one a camper? If, yes, it looks like a tec top, I have a brochure I think or check ebay for tec camper. Matt