I think the problem with my running is the fact that I took a lot of time off with an injury before running Vermont, ran Vermont 100 on residual fitness and cross training, and then expected to just be able to continue training as if I had never taken the time off. I never really gave myself a chance to re-build to full fitness.
As advised by Paul D., I will plan to run the 100K at Green Lake as a training run for the Oil Creek 100 miler. Paul advises that I pace at Green Lake 100K as if it is a 100 miler. Knowing my fitness and strength is not back to baseline was causing me some stress with the race coming up this weekend. To do it as a training run makes perfect sense and takes all the pressure off. Now I have a much better attitude about the race and am looking forward to it.
Yesterday I took a day off from running and rode my road bike instead. I felt crappy starting out, but better as I went. I finished off feeling more like my old self. I'll ride again today and do my strength workout. I definitely can't get into shape in this one week before the 100K, but I can rest up my running legs as much as possible and adjust my attitude to feel more positive and optimistic.