Mustang1977 wrote on Nov 9^th, 2015 at 1:01pm:

I've discovered that possibly a few CABs are missing. 3 CoPilot Gauges are not present which require these. The affected (missing) CABs are: - Captain_Sim.p721.R04.cab - Captain_Sim.p721.R10.cab - Captain_Sim.p721.R13.cab

All required files are accounted for. There are no missing files.

The following CAB files are all that's needed for the gauges you've mentioned:

Captain_Sim.p721.L04.cab has L04_airspeed.spb and R04_airspeed.spb included.
Captain_Sim.p721.L10.cab has L10_altimeter.spb and R10_altimeter.spb included.
Captain_Sim.p721.L13.cab has L13_ra.spb and R13_ra.spb included.

Note: The SPB extension is a compiled XML file that loads and runs faster in FSX.