Firebird was in some backyard near my ex-gf's house in Cutlerville, MI. Later found at junkyard, and then I assume it's now part of about 600 toyota priuses.
Green Chevrolet was in another yard in Cutlerville... sunk kinda low into the ground, but I'm sure it's salvageable somehow (as a custom?).
'74 Buick Skylark GS neat a body shop in Cutlerville Mi. Haven't seen it in a while, dunno if they fixed it and sold it or what. Had a 455 air cleaner housing in the drivers seat.