One option is to make parts of the pit modular/removable.
E.g. you could turn a quick release, lift out the A-10 UFC and fire handles, unplug a cable, and plug in an F14 ACM panel, an F/A-18 UFC or an F16 ICP module in its place.
Much easier for a VR pit where you wouldn't have mechanical steam gauges or displays, of course.