£150 is the going rate for used Hope Pro 2 with decent rims, and is the default/most popular choice. Always a few sets in the classifieds, theres some there with mavic 321 rims and a price drop at the moment (not the seller).
Pro2s are adaptable to every axle/dropout standard, but can suffer snapped axles on 12mm as the axle thickness is a bit marginal, worsened by using a maxle lite which is tapered and offers no support where the bearing sits. The newer Pro 2 Evo solves this but is more expensive.
Our bikes all have Hope hubs, either Pro 2s or older XCs (actually better hubs but only take 9mm).