I'm moving closer to your area of the world in the week following the party - White Salmon, WA to be exact. I'm sure we'll cross paths more often, since I'll be up in Seattle on a regular basis.
I would guess you'll be getting your X delivered through the Portland SC? That's the closest to White Salmon.
You won't be the first Tesla in White Salmon though. I know of someone there who has one. There are several in Hood River too.
I don't know if you have signed up to the PDX Tesla mailing list, but the sign up is here:
PDX Tesla
In future years will you be doing your big bash around White Salmon? I watched this thread over a month ago because I thought there might be an outside chance we could make it, but it's only a couple of weeks after our annual big bash at our house (not Tesla related) and it looks like I'm going to be catching up on work. There has been a big project on hold since the beginning of the year and it finally looks like it's getting the green light.
If you have something up the Gorge in the future, we could easily make a day trip. We're only 1 hr from White Salmon.
Oh and my SO just reminded me of the two great roads for driving Teslas around here: WA SR 14 from White Salmon to Washougal is a great run for any car that's good on curves. There is also the Klickitat grade which is only a mile or two of extremely curvy road.