This is only my observation , but It would appear that the lathe was the proverbial "thin edge of the wedge" as it sounds you may now be in the market for a milling machine and dividing head , you know to save having to spend $15.00 for a new gear when you can "invest" several thousand for the long term eventuality that something else will be in need of repair. Just ask any of the enablers on the site I dare you...