the F/A-23C is a production version of the YF-23.
this represents more or less what the YF-23 would look like if the EMD phase happened.
the basekit is a Trumpeter 1/144 YF-23, with scratchbuilt weapons bays and revides intakes, based on the drawings for the EMD version.
decals and external fueltanks are from a Trumpeter 1/144 F-22A Raptor.
the one thing i dislike about the trumpeter kit is the horribly innacurate canopy, but a little paintwork arround the edges can make it look quite usefull.
and here a comparison view between the YF-23 Prototype (Revell) and the F/A-23 EMD (Trumpeter)