I'd definitely get rid of at least one light. They will suck the humidity out of your cage and your ball will be a dried out mess.

Everyone has different needs depending on their climate to begin with but in ohio I would think it would be fairly humid. You may do fine with an aquarium.

Go with an under tank heater that covers 1/2 to 2/3rds of the bottom, with a thermostat. You will have to tweek things depending on the depth of your substrate. I use paper towels / newsprint. Maybe not as pretty but also not nearly as big a mess and much more sanitary!

Invest in a temp gun so you know exactly what your temp are.