Hi Jumpseater,
Seem to recall that 19 & 92 did indeed rotate aircraft on the odd occasion as they came out of deep servicing; however, at the time of the unfortunate shoot-down, XV422 was in Barley Grey. The wing F4s started off in grey/green, but during the early 80s more of the Barley Grey jobs started to appear. Sorry, unable to help with pics at the moment, but will search around for some.