This stainless steel sink drain has been used by many builders for years. It features a black plastic basket that also closes the drain to hold water. It comes complete with a rubber gasket, washer, nut, and straight plastic funnel with 5/8" ID hose barbs. Some boat sink drains had a metal basket (pictured), this will work in the same spot.
The mounting nut is not stainless, but it is not magnetic, so should be OK...
Need it with an elbow to 1-1/2" hose? Remove the funnel and nut and screw on the ME8068.