That's a very tidy and well finished model indeed Derek!
Small point though, as I'm a Brawdy veteran with a huge Hunter database...
XK149 as you've modelled her would be from the 229 OCU era at Chivenor when she was a straight F6 with no modified tail brake chute etc.
Once she arrived at Brawdy, conversion to F6A standard was accomplished complete with a new tail code of "34" in the plain white lettering style.
See here for the reference to how you have modelled her:
https://abpic.co.uk/pictures/view/1022451