+1Before spending any money put a 15/16 inch socket on the crank pulley bolt and hand turn the motor thru at least one complete cycle. That will tell you if the motor is frre.. You bought something that was not running... Finding out the whys is the next item... Its kinda like a treasure hunt... Hopefully in the end you will find a treasure.... We are all on your side with this...
Bar over the motor first.
Second. if the motor turns freely, quit screwing around with a burned up starter and go get a rebuilt one.