Thanks.
yes I was thinking of adding a door but it was just going to have a single acrylic panel. Might make it a double panel if noise still seems to high. should I add the sound proof panels on the router near to the z axis plate mainly or in other key places?

I dont have have a metal flange handy so il try attaching a plastic pipe in between that I can find spare.

Im running the router in an office suite as I'm trying to do this hobby on the side and don't have anywhere else. This is the key reason for reducing noise.