HQ Version of Kimber wig?

[the living tribunal]

After some prodding on the iDOME and a bit of fighting the tangles, it's time to get my Kimber a better quality wig than the one she came with. However, I am totally ignorant of the words used for wigs, and if I look at Amazon there is a huge variety that I just see as a shapeless mass of wigs - far too much choice All I want is a better quality version of Kim's own wig; ideally exactly the same style, length, etc., but a decent material made by a reputable make rather than a basic nylon one made in a sweatshop in the far east.

Please can anyone point me to the nearest thing to a 'quality' equivalent to the Kimber Wig in the £15-30 price range?