The short answer is: Sorry, I have no idea.
As for the Classic, the steam arm shared the same pipe diameter and seated teh same way. Otherwise, the lock nut/ferrule was different (Classics was female, Silvia was male) so I simply used the one from the Classics steam pipe.
Ill photograph the Classics steam pipe for you Mal, so you can ascertain if theres a chance of a correct fit to your machine.
EDIT: Here is the photo of the Classic steam wand (bent) and the Silvia lock nut. I got it around the wrong way, the Silvias is obviosly female. In any case I hope this helps you make a decision one way or other.