64 Dart Slant 6 Motor Mounts

I have found a 64 Dodge Dart that we will look at for my daughter. The motor is a 74 and from I have been told will need replacement motor mounts. The motor mounts that were used was 74 instead of the 64 and the motor is sitting on the K member.
Not sure exactly what we will need to do but before we buy it...I wanted to make sure that we can get these parts.

Thank you
Rick