Several Doves met their end at Biggin Hill, presumably having first been picked over for spares by Fairflight Charters. I can recall G-ALFT and G-ALFU which probably ended up on the fire dump. I think another one is preserved at Duxford?
I recall the 748s doing circuits at Gatwick, also BAA had a Shrike Commander they used for some sort of calibration duties I think?