The trip sounds great and we've done Michigan to California and on to Texas this fall. No real issues. Watch for holidays, weekends and festivals at popular tourist areas but otherwise, you shouldn't have problems getting campsites. Unless the vaccination program completely blows up, everything should be easing by mid June. I wouldn't let that worry you, just be ready to adapt a bit (ie: we ran the south edge of N. Mexico in one day because they had heavy restrictions when we were passing thru).
Where I question your plan, is the schedule. If I counted correctly, that's 29 travel days out of about 45 days total trip...that sounds tiring.
At probably around 7000+ miles (I didn't plug in all the stops so it might be more), those are going to average probably 5hr driving but add an hour at the beginning and end for tear down and set up...those are full days (7hrs for travel) before seeing any sites.
We shoot for 100-200mile days with at least 1 non-move day between travel days but we are much less restricted on the schedule, so that might not work for you.
If you are locked in on the start and end dates and skipping Maine is a deal breaker, I might suggest planning a few key long travel days and then slow down between.
- Presumably, you've seen the stuff within 500 miles of home, so 1st and last day could be a 12-15hr day trading off driving duties. Assuming 50mph average speed, that would eat up 600-750miles of the 7000 miles freeing up some days to relax and tour at destinations.
- Then if there are areas where you don't have much that interests you, blast out a 600-750 mile day. I won't say where I would do it but you can't see everything and there are some areas where there just isn't much to see.
If you can come up with 5 days like that it will eat up around 3000-3500miles and allow a lot more down days making for a more relaxing trip.
Tammy & Mike
Ford F250 V10
2021 Gray Wolf
Gemini Catamaran 34'
Full Time spliting time between boat and RV