The $10 is to North Aurora, below the dam. Its in the park on the south side of Butterfield. The other is further north, to the Glenwood FP on the east bank. This will require a portage at the North Aurora dam - do so on the west bank.
Several islands in those stretches (ie places with less fishing pressure). I have seen bald eagles, white egrets (I think that is what they were), and even a great horned owl. Plenty of song birds, springtime you will hear oriole - tough to see them unless you set out sliced oranges.
Once, I had me wife help with the car shuttle. She put me in below the Geneva dam on the east bank. Very nice launch point. I floated to my take out above the North Aurora dam. Too much fishing, exploring, etc. Got late. I pulled out in the dark. Needed to start earlier and keep better tabs on my distance to go. Lesson learned. But I do want to do that stretch again.
I have heard of two people, two cars. One car at the launch point, one car at the take out. Uber or Lyft in between. One person stays with the watercraft. Kind of like those logic puzzles I loved as a kid.
Sorry Rambler, no history lesson. Although I do like your suggestions - will check them out.