They said the F-14B would be mid-90s, are you sure it's not possible it's a late-life upgrade A-6E? Just how rare were A6 HUDs? They also said 'HUD elements', not sure what that means.
Looking at avionics comparisons it has to be either an A-6, A-7, Harrier, F-111 or F-4 in rough order of parts common to the F-14.