The Typhoon II became the Tempest. There was never a Centaurus-engined Typhoon in squadron service. There *was* a Centaurus-engined Tempest, which incidentally was designated "Tempest II". Oh... and the serial JN867 belongs to a Tempest V.
Did the modeller intend to build a Tempest II? Or did he simply follow the Superczynski Way? "Build what *you* want, the way that *you* want to."
Whatever... it's a very nice model!