The latest YAS spitfire, a F MkVb marked "538" as used by the Red Army in 1943, complete with revised AIR file and DF aerial, is now available on AVsim, Sim Outhouse,
look for YAS_MkVb(538).zip
There's an other couple of MkVb/c models just being crated "DL-U" and "DL-N" F/O Jean Maridor, with lorraine crosses and Nigeria motif.