1965 Valiant Convertible - WIW?

I have been out of the car buying scene for quite a while and was wondering what a '65 Valiant Ragtop 273, automatic is worth. It's got a good interior, runs and drives well, no major rot issues, needs carpet and one seat is slightly torn. Faded white paint. Light blue interior.

The guy selling it wants $3500. Is that fair? What would it be worth with nice paint, etc?

I paid $4500 for my 65 Signet 273, 4 speed with air 4 years ago. Running, good driving, nice paint and interior ( both 1982 Tijuana ), excellent top. Has nearly 150,000 miles Added 14 inch rallyes, BRG radials, new door panels and top boot.
Interesting that I passed on buying it in the late 70s