So after only a medium amount of hitting my head against the table I’ve got all three models working in FSX with recompiled 32-bit gauges. Top tip, if you’re using the P3D v3 SDK you will get 32-bit gauges, but they won’t work in FSX!
I just need to add something to replace the P3D radar gauge and it should be good to go.
Bravo Zulu 
Carefull with your head now… We’re waiting patiently for your FSX version!
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