That is the good old fashioned Airfix kit, first available in a bag with a cardboard header.
I think Mark said that he is working on decals for these one day at Starfighter,,,,,,,but, I am not sure.
I do know that he has a conversion engine and cowl for it, to make a different version than the box has. (I have one, just for the engine) www.starfighter-decals.com/r182078-engine-and-narrow-chor182078.html
Rex