A518 A500 Questions -Console Shift-67 Barracuda-Challenges?

I have both in usable condition.

Before I pull them out I have a couple Q's....
Are the OD units about the same size and are Trans mounts in same place if I ever change out trans?

A friend told me there is trouble with the conventional Console Shift.
What have you guys done regarding the bracket that bolts through a 904 or 727 holding the
Shifter Bell crank pivot?

Thanks in advance