My family and I big fans of York.
Ben, I visit York a few times a year, and I always pay a visit to that shop. If you go, look downstairs, there's a cabinet full of TR militaria. There's usually a nice selection, from insignia and medals to headgear, though there's a lot of fakes too. The attached images are some of my purchases from there! There's lots of other interesting shops, though this is the only one that has Third Reich stuff in any notable quantity. Shops aside, York is just a beautiful historic City!
Nick, I'd happily take you up on that deal offer at some point too- I had no idea you owned a hotel I've previously stayed at! Small world, eh? Haha