David K. Bradley;4364858; said:A.C.W.
Have you looked outside of Portland, like maybe Oregon City, Tigard, Forrest Grove, Hillsboro, lake oswego, Lincoln City, perhaps at other fish shops, outside of the Portland area. They might surprise you if as far as the cost of a good seasoned log or stumps for your 125. I'm not certain if this is a do-able thing, but it's worth a look. Call them up and see what they have to offer and see if it's worth your while to drive down to their store and purchase one.
Secondly, I really don't know if I'd really trust a piece of wood comming fro the Willamette River or not. I think the Columbia River would be a better choice on the Washington State side (easier access to the river bank in most places). I grew up by the Sellwood Bridge on S.E. Tacoma St. and the Willamette was pretty dirty when I left there 10 yrs. ago. I'd hate to take my chances with it now.
You might want to check the Clackamas River or the Pendleton River too, but they're probably to far to drive for you from Portland and wanting to be home in time for supper. So maybe these two suggestions only as a last resort.
Good luck with your search. Take care.
~David
I agree with most everything you posted, except that there is no Pendleton River that I've ever heard of - did you mean the Umatilla?