A group of us are talking about a trip to South Dakota to ride the Mickelson Trail next year. Would that be close enough? That way "it" could come to eastern Washington. Now who wants to volunteer to ride across the Cascades to get "it"?
Depending on the time of year "it" makes it to Spokane (or Seattle for that matter) I would potentially be on the dry side. Walla Walla in April, Wenatchee in May, Oregon in June. I may be able to transport it in either direction (though it would not all be on bike...)
"Sharing the road means getting along, not getting ahead" - 1994 Washington State Driver's Guide