Mine is 30" deep by 42" wide. I have a good amount of clearance front and back so 24" deep should be fine. I think 36" is a touch narrow though. Note also that the mill has to be mounted slightly offset to one side.
I haven't set up anything for flood cooling. I made a simple surround out of Coroplast for chip control though. The sides are velcro'd to the table for easy removal.