Here´s mine including the space saver tire (although I´m not sure if the latter one is spotting the date correct decal...).
Bought both from Michael Donnelly, he´s restoring and selling tire inflators (full or empty -- depends on what you are willing to pay) and space saver tires. If you should need further advice (or - for example - the inflator´s cap...) you can contact him at mickiemouse1@msn.com (hope this still is his email adress...).