What K Member and Transmission Mount ?

It's simple. You have a stock 73-76 V8 K-member with stock 74-78 passenger car big block motor mounts. IF that combo fit the motor in the right place then Chrysler NEVER would have modified that same K-member to use those same mounts. So, your argument is with the Chrysler engineers who came up with the Direct Connection k-member to use those same mounts to put the motor in the proper position.