Disney73, you are talking about L O N G drives each day with only 2 nights on the road with a new rig. I estimate your trip to be about 1,234 miles (depending on where you live) in Jupiter.
Anyway, that will be three days of just over 400 miles each with two nights on the road. Obviously you want to make sure everything is in 'tip-top' condition with the coach and tires. You didn't mention if it was new or not (but, that's not your question is it? LOL).
Google Maps is showing two routes, one route swings towards a southern route.
There is a nice park in Brandon, MS, called 'Timberlake Campground' that is showing a 7.7 'GOOD' rating on 'rvparkreviews.com'. I use that site for every RV park search. It is mentioned that it is Big Rig friendly. This park will be 414 miles from Dallas.
Next, your final stop before Jupiter, might be Tallahassee RV Park. We stayed at this park once a few months ago and I found it quite nice. There are a lot of trees for shade but will accommodate a large rig, the sites are pull-through.
So, you will be making long driving days but those two locations will balance you out to just over 400 miles per day.
Good luck and safe travels!
Congrats on the new rig!
MM.