I agree with cffisher, there are places to look first. Rear manifold seal is a bad one for leaks, as is the oil pressure sender. Leaks here can find their way into the bell and onto the flywheel. Though I must admit, the fine mist bit does point to a bad crankshaft seal. You should be able to see up from the bottom if the leak is from the center of the 'wheel, or just on the outside perimeter.