Is it worth thinking of supplying the kits with the basic PBG pups, and talking to a pickup manufacturer like Seymour Duncan and see if you could supply a choice of their pickups at special upgrade prices, like with the Grover machine heads? I know you already offer the Bensons, but they are very much an unknown quantity for me and probably many others (certainly there's no UK distributor). It's probably not viable, but it's just a thought.