Sadly my bought engine came without starter so had to buy one.
These starters are pricey compared to a whole engine, found one on E-
Here you see some small steps how I refurbished it a bid.
You can see that it is worn in
Here you see it better ones the first line is removed
Finally its completely round again
Cleaned the space between connectors
The outside needed a cleanup to
After some spinning it looked like this
Cleaned the rest off the aluminum to
End result is looking nice.
And its still working