Hello fellas, as some of you know I've picked up a Enco 20" benchtop mill. I'd like to install a DRO but I'm not exactly sure how to go about purchasing the correct one. Do they make different size DRO's for different size mills? I've watched several YouTube videos on the installation and it doesn't appear to be too painful of a job. I can only imagine how much easier to read a DRO versuses the dials on the machine. Any input would be greatly appreciated fellas.