Coffman - yes those are the ones. I think I got various prices from £5 - £10 for mine, so that would seem about right. I havent seen a picture of the chap I referred to to wearing his - now that would be a rarity.
You won't find Civilians instructing on Hawk, Tucano or any frontline types.
As opposed to just operating them - all the Hawk guys at Culdrose are civilians as far as I'm aware, but ex-mil of course.
Nutloose - excellent suggestion for the UAV pilots