Chris and Daryl have provided the two best resources online for Fett info, but as someone who has a Fett I can confirm that Boba Maker's quality is great. He's a one man shop, so you'll be waiting quite a long time for the completed setup from him if you go that route. He should be able to give you an estimate but often in the prop world things will go longer. He's in the UK as well so you'd be paying a bit more for shipping versus some US based vendors.
Good luck and feel free to ask questions!
