1536, now that is one FINE Replica vintage Armitage Shanks Cistern Syphon for imperial issue back packs!!!
Seriously though, looks great. Did you re-do a mold for that or is it a one-off?
What exactly do you mean? Do you mean you found the part, or a supplier of new parts? The part from the movies is most likely discontinued.
Also, it doesn't matter if they ship to the U.S. if you find it, I am sure we can figure out a way to get it over here.