Road trip planning NJ-South Bend IN

[LetsFNgo]

In June I’m planning to drive the Hornet to the AMO show in South Bend. I’m in Central NJ. Planning on a 3-4 day drive to get there. Leaving Monday morning and getting there Thursday late morning.

My initial idea was to try and take as many scenic routes as possible. I bought a brand new road atlas to plan the drive out which has scenic routes listed. But following northern scenic routes in PA ends up landing me in northern Ohio and I have to drive through a couple of cities.

So now I’m looking at following the Lincoln Highway by Getting out of NJ and picking it up on the western side of Philly. The Lincoln highway goes through southern Pa and Ohio before turning north and going right through South Bend.
But I’m not married to taking this route.

Does anyone have any suggestions for stops or routes I can take? I’d like to try and camp most evenings in state or national parks. It would be cool to find a few lakes and rivers to swim in for pit stops. I’d also like to stop at any cool abandoned buildings to check out and take photos.

Feel free to also call me stupid for planning to drive a dual carb, tunnel rammed, 4 speed, 3.54 geared 55 year old car with glasspacks for 700ish miles.