Seattle to Long Beach info please.

[PeteJack]

I'm thinking of taking the train to Centralia then riding Hwy 6 to Long Beach, return from Long Beach via Hwy 4 to Kelso then train back. Should be about 200 miles total. Has anyone experienced these roads or got any comments about accommodation etc.? There's supposed to be a bike trail that goes that way http://www.traillink.com/trail/willapa-hills-trail-.aspx I get the impression you need a mountain bike and a machete to ride most of it. Be nice if I'm wrong. The quick way back would be Hwy 30 on the Oregon side but that would mean crossing the infernal bridge at Longview. On the other hand is the Puget Island ferry a feasible way to avoid the Lvw bridge? Or is this another victim of budget cuts?