I just started neck turning and built a case drive motor from a 1/2 hp wet/dry grinder. Have less than $100.00 in it complete. I adapted a universal case holder (Lyman) to the wet side (160RPM). Now I can turn necks, chamfer and deburr, without ever remounting the case. I can post a link if you are interested. Not trying to sale anything. You can build it yourself. Don't visit this site too often but you can PM if you would like. Or you can look on the Reloading forum of accurate shooter or Small caliber discussion forum on Saubier. I am tred1956 on both of them. Look for case prep motor.
Here is link to Saubier, you don't have to be a member to view it.:
Or this link: