Here is some shots of my work area (Please disregard the mess).
Made out of wood, and fiberglass in this case. Fits the mill into the corner and the doors really cut down on the noise.
If I had to do it over again, I would skip the fiberglass and use sheetmetal for the pan and then fis the drain to allow more coolant and settle the metal to the bottom and then flow over a drain pipe rather than slope it all down to the drain. On long cuts, I sometimes have to get in the cabinet to clean the drain as it is.
The Doors are really simple, I just used some Delrin rod and made 4 (8 total) bushings that are screwed to the bottom and top corners of each door, then I have some 1/2" U channel Al that runs the edge of the cabinet on the inside from side to side. The doors just slide out of the way by following the track.