Riding in WA or OR mid-March

I'm coming to Portland Oregon March 12-18 from MN to visit my brother. Since I typically go riding out west (own a M7) I would like to go in Oregon. I want to rent a sled and hopefully hook up with some locals to do some boondocking and hillclimbing. I'm flying in and renting a Pontiac G6 (might change to an SUV if I need a tow vehicle), so this might be tough to pull off. I am willing to travel a couple hours from Portland to go riding, in either Oregon or Washington.

So I am looking for recommendations on where to rent sleds and if anyone would be willing to go for a ride. Any ideas or suggestions would be appreciated.