Paint: Dash, console, quarter trim panels.
Replace: Carpet, seats, and door panels, seat belts.
Some have painted door panels, and that's fine if you do a good prep job and use good paint. I was worried about them holding up, so personally, I peiced together black door panel parts from my yard, and Ebay. I also had my headliner recovered at a local trim shop for 45 dollars. That's cheap and it looks excellent. You could try painting that too. I painted my rear seat belts. I used the 81 lap belts, so nobody will every see them or use them. But if I pull them out they are black. It made the really stiff, but they come out and recoil just fine.