Have you tried reaching out to the Portland club to find out? Try Santiam Brewery or Salem ale works I remember a few years ago Santiam hosted a competition that was put on by a Salem home brew club.
There is one here in McMinnville. More of a drinking club though... not too much in the way of knowledge, but i only went to one meeting there.
Strange brew if i recall correctly is the one in Salem, but i haven't had good luck contacting them.