wanted: share a truck for shipping to Seattle

I need to move about 30 boxes (600 lbs. total) to Redmond, Washington. It's super expensive to ship "LTL" (less than a full truckload) so I want to share a truck with someone -- or if you have a giant truck for some reason and feel like driving to Seattle, that works too.
I'd be looking to have the things arrive around 8/22. Please let me know if you're interested or if you have any helpful leads! Thanks!