Bob La Londe wrote:

and I can always run an easily breakable bead of
silicone along the front and rear of the table to contain coolant so I can
remove the enclosure if it does get in the way for some projects.

You can run some flaps of 2" vinyl tape along the edges of
the enclosure to direct the coolant back to the table.
One piece of tape on each side, facing together covers up
the sticky edge and turns it into a plastic flap, like a little
roof shingle.

Sounds like a plan is forming!

Jon