So all up the cost for the plug is under $5.00 (RTBB).  I believe there are adaptors available but I don't know the costs of these.

I double checked each wire with a continuity test to make sure it was going to the correct pin.  I would not rely on colour codes alone and although some of the black wires have a stripe to identify it, it would be easy to mix them up.

The only other modification I had to install was a mount for the coin door switch.  My getaway had the switch mounted in the old coin door so this wouldn't work on the new NOS ones (one I purchased a while back).

I purchased a bracket WMS p/n 01-12676.  This is game dependant.