Klamath in September?

Hey everyone, I'm in the beginning stages of trying to plan a trip up to the Klamath this September for a 4-5 day camping and fishing trip for kings bookending a weekend.  What do you think would be the best dates to go up?  I was originally thinking labor day but that might be too early and might be too busy.  Right now I would say September 11-14th.

Any ideas on where to camp and launch?  Anyone else interested? I know mooch wouldnt be!

I have a good friend who is a guide up here, I will let you know what I find out.