I've pieced together a dedicated run 2 pick up and 5 drops, 210 miles 5 days a week leave my house at 9:30 am home by 4:30 pm pays $195.00 a day, so it can be done if you plan your work and work your plan
If it ain't broke why fix it?? I've replace the water pump and at the same time replaced the fan clutch just for some peace of mind. But fans don't go bad