Here is a completely different route.
I81 south to Scranton.
I476 south to Philly.
I95 south thru Wilmington
Route 13 south
follow rt13 south thru the entire DELMARVA peninsula to the Chesapeake Bay Bridge Tunnel
Then route 58 west to Emporia.
then I95 south.
.............
The traffic to and around Philly can be heavy.
Once on route 13 it gets much more relaxing. Multiple places to get fuel, food, shopping. Great State Park Campgrounds in Delaware. Great scenery. Farm produce stands. More campgrounds and friendly Walmarts down the peninsula.
Friendly Walmart and Cracker Barrel in Emporia.
The CBBT may look scary but the experience out ways scary. I drive it in a 38ft pusher towing a Chevy van easily.
Chip
06 SurfSide
30ft class A
2 slides
Ford V10 chassis
04 Chevy Astro van toad