Yes, the standard 28 spline axles should be fine. Tom's and others do sell versions with upgraded materials.
The exception to this would be if you were planning to run lockers or limited-slip differentials. In the case of a locking differential, the upgraded 31spl axle shafts are recommended.
With a limited-slip, like the factory offered as an option, 28spl axles are fine for your road use with modest sized tires.
Paul