Here - i made this public: https://www.strava.com/activities/9845024407 If it works for you, you should be able to see the KC to Pleasant Hill details, which is what I think you want to know. Google Maps had us going through some kind of Memorial preserve, but there is intel on using different routes to connect.
Check this link out for that:
https://ridewithgps.com/events/89805...967040/preview
- we used the "more gravel, less traffic" route. It took us past some rock quarries with some REALLY BIG trucks. The drivers seemed like total pros and were usually going about 15mph. I didn't have a problem with the trucks, there weren't many when we went though (a Wed. late AM). I actually found the route really nice. Hilly. Interesting. Not much shade though.

Camel up before leaving Pleasant Hill. There's NOTHING until Chilowee. And then only one small store. We pushed to Windsor making it an 87 mile day. (my strava shut off or paused, so I only show 66 or something.)
.... ok,, not nothing - but cows and cornfields aren't giving up Gatorade or salty snacks! -- is what I'm sayin'

let me know if you got other questions. we had PERFECT weather the whole time.