Thanks again for all input guys. In researching all the recommendations so far, the DW and I have definitely concluded we need to spend a lot more time exploring Washington state. We're planning to retire next year, and this area is high on our list now to explore. We've flow to Seattle a couple times, and driven through hitting key points like Multnomah falls, Mt Saint Helens, Mt. Hood etc.
After showing the DW the suggestions, we're leaning to spending the first week on the coast as she loves the Ocean and doesn't get the chance to see it very often. We're also really interested in Exploring the Hoh Rain forest for a couple days. Still trying to figure out the time period DW will be in Seattle, Since it appears based security might be an issue at some of the Southern campgrounds southern campgrounds we might just try to book the FamCamp at McCord, but are still exploring staying west of Seattle and taking the Ferry, or staying on the West side of the Cascades and doing a longer commute on the Wed and Friday. Pick up and Drop off will be noon both of those days.