1969 ignition switch trouble

Ok, here are some pics, and the switch on the right is for 69, the other ones are for 67 and 68. 69 has 5 connections on the back, same as the middle one, and the one on the far left has 6. The connection that is "missing" from the 69 and the middle one is the "ground" it must be elsewhere in the harness. Dimensionally the 69 is bigger both in length and width....:prayer:
Anyway I would say take yours to a locksmith or get the one from your link and get it keyed to match your current key.