Yeah that makes sense Mercury.  I know how the black vinyl seats go, along with no a/c.  But I hate a/c on old muscle cars.  My 351 runs pretty hot too, so a big long trip would not be good on her.  That's what the car trailer and the Jeep are for!
I have a solution for you.  Put a hitch on your GT and pull the 64 1/2 on a car trailier!
 
 
  Just joking!