The biggest issue is going to be what holes are available in the playfield to mount to, on the original pro. I have the LED pro and one thing that's obvious is that there is a notch in the plastic to the right of the bell mount. I discovered this when I installed my Pinbits plastic protector set. I had to trim the protector to clear the bell mount. So which ever version they made the protectors from, didn't have that notch. So, just to be clear, the premium/LE has a mount to the left of the bell and the bell pivots off that 1 side. The LED pro has a crane structure looking mount behind the bell the stretches out forward and the bell povots off both left and right sides of that bracket.