I have a suggestion for you to try regarding the cemetery. Have you ever heard of Raogk? It stands for Random Acts of Genealogical Kindness. Search the site and you will find someone in your area that will search and take photos for you. It is fairly simple to enroll, and the instructions are easy to follow. Their website is www.raogk.com
Another suggestion for your obit lookup is to post it on the Oregon or Multnomah County Forum. Researchers in Portland have access to newspapers from around the state.