'67 Oldsmobile Delmont 88...........yes please, a 4 door hardtop
'68 Mercury Cougar GT-E
'68 Chevy Bel Air............4 door sedan
'69 Plymouth Belvedere...............wagon or sedan
'70 Buick Estate Wagon...............yes, yes, yes
'72 Chevy Biscayne...........yep, especially a sedan or wagon
'73 Ford LTD Brougham.............Oh yeah, again, sedan or wagon
'74 Mercury Cougar XR7..........possibly, but too similar to the '73
'78 Ford LTD II.............sedan or wagon
'79 Ford thunderbird............yes, yes, yes
'79 Oldsmobile Cutlass...............one of those oddball slant back ones
'85 Ford Mustang GT and LX notchback
'90 Chevy Caprice...........make it a '77 two door with the cool rear window
Just my ideas on your list. There are many more I'd like to see as well. Thanks for a great list