Ford Fairmont XC 1977/8 Hardtop/Coupe 351c, how much is it worth realistically?

Just want an independent view of what this thing would be worth. Thinking of selling.

Full verification from Ford Motor Company (FoMoCo).
GT Power Pack.
Matching Numbers 5.8litre (351c) with automatic transmission.
Blue/Green in colour.
Houndstooth cloth interior (original and unmakered).
New vinyl roof.
Factory windup sunroof.
Factory electric windows.
Factory power steering.
Factory air conditioning.
Factory rear disc’s with 9” diff and LSD.
Factory 8 track cassette and AM radio.
Passenger side rear view exterior mirror.
Rear sidevents and bonnet vents.
Bumper overriders.

This vehicle is completely original and in very good condition. The vinyl roof has been replaced, but requires minor seals, most of the real work done. Car is currently registered in Victoria. It is started every fortnight and wheels rotated to keep in good condition. All working except, the factory clock mounted in the central dash does not work; all electric windows are erratic. Rust in inner lower part of front doors, rest of car is clean and untouched from new! Driver’s side rear quarter has dint from 10 years ago. I will NOT post pictures unless some one PM's me if genuine.

8 Track in a XC is a bit sus though. Are you sure its not just a radio cassette?

Sounds rare. Mid 30s easy with the way things are going. The 8 track has me a tad confused also and the blue green colour? What's the coour code on the ID plate? Colour of interior trim? I'm guessing herring bone cloth inserts?