Was that supposed to be an exclusive interior? Seems an awefully odd choice for a red/wht/blu car...
I would swear I saw a Dart Spirit of 76 about 25-yrs ago @ the Nat's with a red/wht plaid cloth interior. Same exterior as you describe and as I've seen elsewhere on the web.
I also saw a Volare with the orange and black Halloween interior @ about that same timeframe. I've never seen that availability for an F-body in a brouchure though. It could have been that someone had stretched the material over the F rear seat frame and simply swapped fronts, but I don't know.
I have A63 for the Dart "Hang 10" pkg 73-76
I notice many blank numbers in the "A" series option codes. Could there be an obscure, virtually unknown, code for this stripe treatment? It should be a fendertag code, not just something on a long lost broadcast sheet...
Does anyone know somebody with one of these cars?