The Blitz Rig and Beast

In the promo comic the Blitz Rig was depicted as a playset of sorts (looked like a retooled Big Jim Camper) but it ended up as a gift set of sorts. The Beast was a recycled Big Jim Camper which also was pitched for the Mork and Mindy line.

1976 Big Jim Index

Big Jim P.A.C.K comic

Big Jim P.A.C.K figures from Mexico