Drain plugs for 1950s wooden sailfish?

The 1950s wooden sailfish I recently acquired is missing the drain plugs. There are 2 drain holes with screw threads, one in the rear transom and one on the top deck near the bow handle. I am assuming that these would be the same drain plugs that a sunfish of that era would have used. Is there a source for replacing them or is there a modern equivalent that other folks use (would a baitwell plug work?)