Also wondering,67 GMC Camper Cruiser

[old Chevy guy]

I have a 67 Gmc camper cruiser and was wondering if anyone could offer some info as to weather this is only a 67 option, and is it rare or collectable? Ive only seen a few ever and wonder if it would be dumb to restore it in a nonoriganal way. It has tinted windows and factory air. A dana rear end and a v6 engine ,a 305 im pretty sure. Its not the origanal one altho the truck did come with a v6.I learned some stuff from another post on this page but would be thankful for all you can offer.