Toluene Dart - '73 swinger

the red stuff is getting sanded off... I had to primer what work I did because the weather turned pretty quick... it's just spot putty that spread out pretty far. All the spots that are already covered by the primer were sanded down to little dimples dime sized or smaller.
Luckily the body is in damn good shape... Worst part is the bottom edge of the back window (rusted through).