It it were me (and it's not!) I would take 95N all the way to the NY area (495 around the DC area) and then go as far around NY as possible. For me, that would mean 95N to 287 to 287/87E to 684 to 84E. Catch 90E to 290 to 495 and in.
Use Google maps and move the route to match mine or compare some of the alternate routes. Just don't select the default route with 95 all the way. I did that once as a rookie and it was a very scary experience. You could also take 87 all the way up to 84 for only a few more miles but easy of transit.
Not knowing your actual point of departure, it would seem that Jacksonville would be your first stop followed by Florence, SC, DC area, check out Cherry Hill, somewhere around Danbury, CT and then into Littleton.
Check out RV Parky and/or rvparkreviews to find a park along the way that works for you.
What I post is my 2 cents and nothing more. Please don't read anything into my post that's not there. If you disagree, that's OK.
Can't we all just get along?