Looking for a source for the cardboard trunk panels. Also seeking a picture of the spare tire/jack set up so I can make mine as original. Thanks

 

Fusick has cardboard.

 

Here's an illustration.

Fusick's cardboard is for Starfires, not the same as 88's.

 

Fusick's Starfire trunk panels will work in the 88 (same B-body) if you want the more "finished" appearance.

If you need the side panels that cover the well area between the quarter-panel and trunk floor, check with Chevy or Pontiac vendors also. All these cars are GM B-body and generally what works in the trunk of one works in the rest.