1965 Dodge Dart Charger
Flat-face locks were early style; concave-face locks were definitely offered as service replacements and may have been used in later vehicle production as well, though my '65s' original locks were all the flat-face type. No part number changes to rely on, unfortunately; flat ones and concave ones (with the whole variety of different key head shapes) all came under the same part numbers. :-(
Condenser on the back of the IP is correct.
The instrument cluster voltage regulator you bought is not applicable to your '65, which has the regulator built into the engine temperature gauge.