I am going to suggest Camp La Wis Wis in the Gifford Pinchod NF. I see you have a pretty big 5er & the CG is supposedly nothing bigger than 30'. However, we went down & shoehorned ourselves into a site with literally inches to spare on length & slides. There were sites larger but, you guessed it, they were occupied by rigs much smaller than us.
The thing is, this CG straddles a raging rapid & without doubt is in the top 5 CGs we have ever been in. Well worth the effort to squeeze in & a good base for Mt Rainier area.
