I was basing it on the fact that they were about £600 brand new, and the only ones that I've seen sell on here went for around the £400 mark (admittedly a few years ago).
Hmm, maybe I'm being a bit too optimistic then. The Gary Clark Jr is a lovely guitar had one years ago, the Gibson pickups were nice but still preferred the Lollars, realistically £600-£700 is a bit optimistic as it is a out of production/limited model, the cheapest I have seen it was on Facebook Marketplace for £870 and was instantly gone (I saved it and a few hours later checked again and was sold)!