Greenfrog,
I found a set of them at Space Coast Hobbies here in Melbourne, Fl. I don't know if they sitll have them or not though. Their number and e-mail are:
321.722.3696
schobbies@aol.com
Like I said, they might be worth shot, but no promises!
Twenty-five bucks on e-bay, huh? Wow!
I can tell you that the SATCO tires are good quality and they look great once they are on and muddied up.
Good luck!
Carlos