Thank you for all of this guidance! Regarding the statement that I have quoted, can you elaborate on the drawbacks? I am looking to understand the tradeoffs that I will be making by doing it this way versus having the blocks on the spindle mounting plate and the rails on the Z-Axis plate. My concern is that if I put the blocks on the spindle mounting plate, the greatest depth that I can get will be the length of the barrel of the spindle minus the length needed to clamp it. I will draw it up in sketch up this evening so that it will be easy to understand what I am talking about.