worksman mounting

does anyone know if there are clearance issues between the chain and wheel/fender on a worksman INB wheel? I know they use a Shimano cb-e110 coaster brake. on my kit It's 1 1/2" from the center of the motor to the motor sprocket. Worksman wheels are like 2 1/2" wide. Is there way to overcome this issue if there is one? any bright ideas?
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DasKapitan informed me "The fender wouldn't clear the drive chain in a standard installation. You'd have to cut out for clearance." I don't think I will use finders on my build. does anyone know about the wheel clearance?