Sorry, self supported for more than 1 night is too slow for me; but maybe, if the landscape were flat. I appreciate van support so as not to carry the 'nice-ities' to make the journey more enjoyable. Primarily, better food and sleeping. [I do enjoy multi-night wilderness backpacking]

As a younger man, hotel and credit card touring with 2 other friends was good in California.

At 60, I did cross Washington - Neah Bay (western Olympic Peninsula) to Spokane with the family van for support, and a generous daughter.