The Revell/Monogram Datsun 720 could be a starting point for an LHD dash for the Aoshima 720. The Fujimi CRX is a secondgen, the Tamiya is a firstgen; Tamiya's (recently reissued) mid 80s Civic 4-seater hatchback has an LHD dash that might get you closer.
I did one for the Fujimi Prius but it was something of a hack job and the center console relies on painting the interior one of the lighter colors.
MkI Fiesta's a possibility, I doubt we'd get a full US version but if they kit the XR2 it'd have the round headlights. Current generation Fiesta ST, maybe - in that case maybe RoG could do the Euro version as full detail with a US five-door snapper designed in such a way to make kitbashing as easy as possible? Or they could just do a Focus ST which comes with a heaping helping of doors worldwide.
I'd like to see a Morris Minor, too. And how about a Volvo 140 series?
Don't forget the extent to which Cadillac *dominated* the upper-price segment, it was a good year for Lincoln if they had a quarter of Cadillac's volume. The "two-Ford" ads were probably an attempt to open a second front on GM's share of the high-end market.
I'm surprised it's not a Buick, since they desperately need to stretch the brand to cover every sort of car that's premium but not fancy enough to be a Cadillac. They're did well with the Regal, but the Verano seems so "old GM" with its' ugly grille, tacked-on trunk and mandatory automatic transmission.
A halo four-door muscle car - call it Grand National - would be just the thing to get people in to look at, say, a manual Verano hatchback whose grille fits the original Opel opening. Or a diesel Regal wagon. Or maybe they'll go straight for the new GN.