I would wind up camping around the merge. While I could have stayed at Knoch Knolls, I moved on by a half mile and found a nice short patch off the river. It was a little steep, but worked.
I originally tried finding a camping spot in Hammel, but between the steep banks, overgrown shores, and lack of clearings, there really was not much opportunity to camp. I wound up having to portage the dam, then hustle downstream to find a suitable spot at the end of the day. In the end I found a nice clearing south of some parks in shorewood, but it was more worry than I'd like.