The outer 50 Cal gun was removed for the Airborne Intercept Radar extra weight, the scope was placed in the center of the instrument panel, flame dampers on the exhaust, two antennas linked to the Radio Altimeter under the fuselage, autopilot was installed, VHF unit installed instead of HF, arrestor hook removed (land-based marines), more powerful generator installed and an air intake on the front right side to ensure cooling, some had lengthened tailwheel legs used on the -1A and D's.
Normally painted NS blue-grey and NS light grey but some were 3 tone and VF(N) 101 black or a mixture of black/insignia blue with no code numbers.
32 converted and 2 field modified from what i've read. No pictures of the scope but i've seen pictures of hellcats and tiger cats scopes.