When I built my workbench, I placed strips of rubber between the top board and the 2x4 frame to absorb some vibrations. I have mine setup in an unfinished room in the basement. Noise isn’t too bad.
I would put surge protection on the x-controller and whatever computer you’re using to run it. I ran a seperate power source for my dust collector just to be safe, but there’s no need for the dewalt 611 to be n a surge protector. It doesn’t much mind it one way or another.
I made up a simple relay control for my dust collector and spindle. Have a look if you like. Many others on here have come up with even better power solutions.