dont know about UK but here in sweden its a pretty big "culture" with people who like old american cars and muscle cars most parts that is close to stock or stock replacement is not a big problem at all but things like cast iron manifolds for a 340 is realy difficult, i work att what probably is swedens biggest company selling US car parts and i can find most things i need there sure its more expensive than buying parts over in america but most things are possible to find;)