I know those builders at GM had some fancy places each one liked to stash the build sheet and was wondering if anyone that has owned one of these flat tops knows where that clever guy hid the sheet at before I go ripping into this. I dont know if the vista cruiser wagons had them in the same place or not, thanks for the help guys C_L

 

Very likely the trash bin at Lansing many years ago.
Maybe if it isn't a Lansing built car it may be in the roof lining, over the gas tank, under a seat, or a PO may have found it before you. Or it never left the factory with it...
The assembly workers weren't playing hide and seek, if the sheet was supposed to stay with the car it would be among the documents folder when the car was purchased from the dealer.

Roger.