Hi there. So i bought a lathe from the scrapyard for scrap iron price. I know it is worn cause i can see the tailstock groove on the tailstock ways...So i would like to know how bad the worn is on the lathe in general and if it can be useable? Is there any cheap way to check this? i only have a dial indicator and a micrometer....no surface plate or straight edge....i also own a chineese mini lathe..