Tire size

Thank you man bad *** ride you got!! I am thinking of selling my 64 because I never drive it anymore and it's all original thats why I went back with the 13"s to keep it all original, but as stated earlier, there is no 13" tires out there so I hate to send this thread in a difference direction but what is my original dart worth??? It is a /6 I had to replace the seats but kept inserts so basically it's all original thanks for replying:confederateflag::confederateflag::confederateflag::confederateflag::usflag::usflag::usflag::usflag::thankyou: