Just received a catalog from C1 (
www.clearonewindows.com) - makers of lightweight polycarbonate racing windows. They can do windshield, back windows, sides - pretty much anything to fit your car. They can do stock size (cut to shape up to 1" oversized, youdo final trimming to fit) and blank kits (where it's cut 2" oversize but not fabricated to shape, you do final trimming to fit). Or you can send in your windows and they cut to an exact match.
The catalog didn't list any Olds vehicles but I'm sure they'll do them no problem. What surprised me is that they listed windows for the 1990-93 Dodge Daytona. Total weight savings if I replaced the windshield, both door windows, the hatchback glass, and both 1/4 windows behind the doors = 63 pounds! My hatch is heavy as a Mofo so I'm surprised that glass swap would only save me 16 lbs, whereas the doors would be 18 apiece (or maybe that's total = 9 + 9 but listed singularly as "door", not "doors". True savings might actually be 81 lbs. if the door windows are 18 each instead of 9 & 9).