I do believe the info you are looking for was once part of the Dragonfly Canoe Works (DCW) site. Due to the same issues with site hosting providers that led to the changes in the WCHA site, the DCW site was likewise affected. While I have started to rebuild it (and add some of the same information to the WCHA site), it has always been a labor of love and a one-man-show. The old DCW information is archived, but my own interests and businesses have taken a different direction, and my interest in maintaining the DCW site (and giving away information for free) has waned.
There has always been room for other folks to step up and take on some of this type of work for the WCHA site, and I would be happy to facilitate if someone(s) wants to. Yet, the site has been the Dan-and-Benson show for some twenty-plus years with very little contribution from anyone outside of the Forums, and with the WCHA declining at the rate it is, I am not optimistic that anything will change.