Kewl! I think it would be great to get to one of the US marble shows. I know I'd like to go someday.
Well, you seem to have a 'never give up' attitude and that is good. Something will show up...I'm sure of it.
Oh, was thinking, if you make it to the marble tournament, maybe have some cards made up stating that you are a collector and hand them out...who knows what good it will do but it's a thought.