I think you will find it cheaper to just buy a new or used motor. It will probably cost as much to replace as repair.
The business world figured out they made more money by making them cheaper so they don't last as long. and they drove up the rebuild parts prices to force you to buy new. Go get your car starter or alternator rebuilt today. They give you a core price, because they want the, Case, stator and windings back. They throw some new parts in it and then they sell it back to you as a reconditioned unit at almost new prices.
long rant, I buy older 110 motors as I find then and put them on the rack for later.