Part needed.... please help

I am trying to convert my 25 hp Johnson (1995) from a manual start to an electric start. I am looking for a flywheel with a ring gear - I think it is part #585185. If anyone knows where I can get one, please let me know.

I have checked EBay a few times, but can’t locate one. I do not necessarily need the motor to charge the battery. I will probably just install the flywheel and starter motor. I need the new flywheel to accommodate the pull start as well.

If anyone knows anyone or anywhere that sells used parts, I would appreciate the info.

TIA