ok I did some digging for ya and found out the Badger 100LG is 99.99 pounds at www.Hannants.co.uk, at www.dixieart.com it is 36 pounds (equivalent) plus about $20 for shipping (10 pounds? cost) I think you are subject to VAT tax so I couldn't figure that in but it looks to come in around the same price or a little less than the H&S Evolution if you ordered it from the states.
The H&S is 110.00 Euros which without shipping comes to 74 pounds... the Badger 100LG from dixieart comes in approximately at about 57 pounds or so without the extra needle and tip combo including shipping, but not figuring in VAT...
I guess it boils down to when ya want to receive your new brush... if its worth a few extra shekels (just to introduce one more currency type haha) then H&S.. if you are not wanting to spend a ton, then dixieart and wait a few weeks, although the savings is not significant as in compared to hannants... I'd stay away from the 100LG at hannants... a bit on the high side which is par for hobby shops here too!
But if you get either the H&S Evolution or 100LG spare parts are available in the UK for both...