Emu68, possibly these will help?
WZ884, with WP984 behind (August 1973):
WK548 (no date location for this, but I'd say around 1965:
WP901 (August 1971):
WZ878 (August 1973):
WD345 - actually when the photo was taken it's with ULAS (note the distinctive form of the tail code "A"), but it still retains the Nottingham UAS fuselage stripe:
