At least after reading through some of the Fasttspring stuff I don't have to worry about credit card charging for converting from dollars to sterling. So looks like it will just be shipping, import duty and collection commision to pay.

Daz Studio 4.8 and 4.9beta, Blender 2.78, Sketchup, Poser Pro 2014 Game Dev SR5 on Windows 8 Pro x64. Poser Display Units are inches