Nov is a great month for NW creekin'. Lots of rain, typically, but it's kinda all over the place and hard to predict, even a couple days out. It is a good month to be here with a high probability of being able to get on a class IVish creek like Pilchuck Creek or Clear Creek, or NF Nooksack??? Ben might know of some other "SUP" creeks 'round these parts...

Pretty hard to recommend anything when the only information you give us is that he is a surfer and has SUP'd the South Silver (basically FITW but steeper, harder and slightly more pool drop). Maybe Waterwacko could take him down the EF Lewis?
If you're looking for medium to high water creeks in the 3-5 range, the month of November in the PNW is where you want to be. I'm sure lots of people have great recommendations on whats out there to paddle. Clean, low volume slides with good lighting? Not a lot of that  around here.

Whatever floats yer.... uh, craft.