You can get the conversion starter ready to go here..
Just make sure it has the RH Helical starter drive.
https://www.ebay.com/itm/374138977954?hash=item571c6bbea2:g:RlgAAOSwmRtiry54&amdata=enc%3AAQAHAAAA8ONwmQwYFHhVrLVkjqMYp8rTEnk%2B%2BVN5jlvmXrkCFbLeoolvDZyY9pJwfwKNeRt8ahpKYVByks71vwQnUh1hJY%2BCm4syvPNBoC0wfnvEgc1SI58GpkIYAtpMYN30JSos34v7keNKkbhhKTcEcpOw16jXSJh%2FGCRseJmRSJUTfNWTRedTFrwj0o%2B%2BjqeGM%2F2e5wHowwjFXXG40XpGY1LGSeIBccu0svg7lBAbzuQijBs%2FO%2FT2A9pijBwonqrfZs6RaVvGBrt%2FOXUKgRgg6LSxpKFTiflWrabbWPyd4sc2qbp%2BEjsLF8x9JAPIRHovgar1Jg%3D%3D%7Ctkp%3ABk9SR7zAkL2gYQ