Hummmmm... this is VERY interesting. Sounds like a neat ride. I don't have nearly the miles or experience (nor the time off) to undertake something like this quite yet, but I lived in Marion (parents still live there) for quite a few years and traveled around the area (Delaware/Kenton/Bellefontaine) when I lived back home.

Marion area is QUITE flat, but it does get a little hillier as you had south toward Delaware... I never bicycled around the area, but there is a nice little bike shop called Rocky's Cyclery.

If you go, make sure to post pics and a trip report!!

Shannon