Model B starter broken

[rbullockv8]

This is for a 32 Model B pickup.

Just broke my Model B starter shaft. Stock 6v unit running on 12v. Heard this was a possibility someday. Mine is the post-style starter (post is on the bottom) for use with floor rod to switch, not the pull switch that's used on some '32s. Anyone know if these starters are the same as the Model A starters? I'm thinking to either get it rebuilt and rewired for 12v, or to buy one already done.

Thanks for your help.