Russian XB3 frame and forks

...does anyone know where russian 26mm headsets can be purchased?

Dude, that's what they meant above - no parts! :)
I'm kidding of course, but let me tell you this - even us here lot are looking for them, cause they're not produced any more.
There are two options:

1. I will try and look for an extra new(ish) one for you. In return, you will change the name of this thread according to my request above - from "Russian" to "Ukrainian" :)
   
2. You can take a standard 1" headset, and have a mechanic (not sure of the word) re-thread it in order to fit "soviet" fork threading
   You can of course ditch the old headset and fork and just get a new standard ones.
   
   

Shout for more info