Michael, call 425-228-9100. That is the number for Copes in Sumner. When I was working there last summer they had a few pairs of the older stuff. you may be able to get them real cheap.
Just looked at the Cope Sumner inventory on wake-space.com's liquidation center and they have a pair of 3's, 4's and 5's. They are 500, 600 and 900 respectively. If you call them ask for Kevin.
(Message edited by polarbill on April 09, 2008)