If it really is ex-MOD then it is part of the white fleet which means that to all intents & purposes it is basic civy spec. It is possible that it could be ex-RAF but this will be on the release papers if you manage to get hold of them (I take it you are not the first owner since it was cast?).
The air intake is a Wolf item and has obviously been added afterwards. The tyres look very small for a 110, are they 7.50x16 or equivelant? What engine and is it original or original type?