Definitely check our Monroeville, IN mentioned above. There is a community building where you can stay for free. And Staggers bar, which I understand is still there, was a great place to meet the locals. I'd include a photo from my afternoon there but I am sure it would violate forum rules.

Going to the Sun is a fabulous ride. It will almost certainly be open by the time you get there, assuming you are not burning rubber, although last year opening was delayed until mid-July due to heavy, heavy snowpack.