Hi Dave

Welcome to the forum and it sounds like you're not a million miles from myself (I'm a bit east of Ludlow).

It also sounds like you have some of the pre-reqs for your own machine or at least an understanding of where you're going.

If you post up a design for critique, there are many folks here that will help you on your way to building your own router/mill, but it is also helpful to know what materials you are looking to work in, as I'm sure you know a machine for cutting wood is very different to a machine for cutting steel.