I would make a table out of a sheet of 3/4 inch birch plywood, it's a very strong, smooth, clean plywood! Cut it in half, then lay your old table on it , trace it out, and cut it out. Then I would seal it with a good varnish to keep moisture out of it. And if you want to get fancy, you could glue a piece of Formica on top because in time the varnish will wear off and expose the wood to moisture.