Sorry to hear about your run of bad luck.
Have a couple of questions-
I guess you are referring to the "3 way valve"?solenoid valve brass liner completely broken in half
Is the associated coil still OK?
Where are you?
If no-one on the Forum who is nearby has any suitable spares I would suggest you keep an eye on Gumtree for a non-working 6910 cheap for parts. They can often be had for $30 or less with "steam not working".