Camping between Kings Island and River Highlands?

Hello!
Beginner paddler who has admittedly done little planning here, who was hoping to do five days on the river next week, starting below the South Hadley dam so that I wouldn't have to portage. But I'm just now seeing that after ending up at Fannie Stebbins or Kings Island at the end of Day 1, there is a ~29mi-34mi stretch of river (depending on FS or KI start) without any listed campsites. Does anyone have any beta, thoughts, ideas on camping options in between?

Thanks!