We're thinking kind of similarly. I'm considering tacking on the Pelican Bar to our trip to Appleton, but not sure if it would pair better with YS Falls, instead. I don't want to go more than two places on one day because I'd hate to feel rushed, but I'm pretty keen on all three of those.
I've looked at a few of the private driver/tour groups and many of them do say they pair Pelican Bar with both Appleton & YS, so it's certainly a reasonable prospect. One I looked at said they leave at 8:00am, so close to what you were thinking.
All of this stuff seems awesome. I want to be careful not to plan to do too much, though... need to leave time to just do whatever the day feels like.![]()