San Fran Bay Area to Yellowstone

We just purchased a 2518 (1999) in anticipation of taking a trip to Yellowstone next September. We are in the early stages of planning, making reservations, etc. Big question is: has anyone else taken the trip (not necessarily in a TM) from the immediate San Fran Bay Area to Yellowstone? We were wondering if we are being too optomistic thinking we could make it to Elko, NV the first night, and then hit Yellowstone by the second night. We are planning to depart from home early on a Saturday morning, with the thought that we wouldn't hit much traffic along the way.
Side note: we are thrilled to be a part of such a wonderful family. I can always count on the forum to provide such excellent insight into owning, maintaining, outfitting etc. our new 'home away from home'.
Any comments regarding our upcoming Yellowstone adventure are sincerely welcome and appreciated.

Wayne & Abbie Balland