Good morning, Monty;
Another group that might have some ideas for this is the Kite Aerial Photography group. Using a large and stable kite, or a large balloon or kytoon, it will be fairly easy to get the vantage point you want. There are even ways to aim the camera by remote control. The KAP guys have done quite a bit in this realm. I am away from home right now, and I do not have any of my resources at hand to quote for you. Please try loading Kite Aerial Photography into a search engine. If it does not work, let me know, and I will send it to you.
By the way, we do have your namesake city here in Washington. A slight variation in spelling with an "e" substituted for the "y," but it is there.