I have a swagger wagon (don't call it a minivan!) that can do the trick as long as folks don't mind sitting on stale cheerios. Room for 6! We'll swing through Lake City and get you Stewart.
As shared by @CascadeClimber in another thread, but with a clear call to action in the post title:
https://www.change.org/p/restore-mount-rainier-weekday-winter-access/
Also his list of effective instructions: