You can add another tank which will give you more volume, which will keep you going a little longer before your compressor cycles. Your time to cycle will be longer which will be harder on your compressor.
The 10 HP is probably going need 3 phase power but will run anything you throw at it.
Here is a Craigs list search of the midwest. You can filter it down to states since I don't know where exactly you are in Wisconsin.
