Replacing DS1 Drainplug

Had a wonderful weekend of sailing, but also caught a case of the drain-plug blues. My early DS1 has the simplest of drainplugs - a nylon mounting and threaded plug right at the bottom of the hull, right behind the centerboard. So, Saturday I did everybody's favorite trick - forgot to screw the drainplug in, mad scramble back to the boatramp.
Sunday was even better... I managed to bang the hull onto my trailer's bow roller just the wrong way and the ENTIRE plug assembly popped out! Damn thing was only held on with a gasket and some ancient goop, I naively thought it was screwed thru the hull. It DOES have two screwholes, but what I thought were screws were just the gasket pushed up into the holes.
So now what? Get some 3M 5200 (or 4200) and just glue it back in? Can I/ should I screw the plug mounting to the hull? It's about 1/4 inch thick, so that's a mighty shallow screw... or do I screw it THRU the hull and then what?
Also, if I want to replace the whole thing, does anyone have suggestions? I'm thinking of glassing in the hole (glass mat, thickened polyester resin on both sides) and then putting in transom plugs. But does that really buy me anything? Would still be below the waterline, and not as easy to see. Hmm. Likewise, the only reason to replace the original mount/plug assembly is that the one I have is from the 50's, gawd only knows where I can get a replacement plug if I ever need one. Unless I can use an expanding flip-lock plug as a replacement? Dunno. Ronstan has a plug very similar to mine, but it has a "keeper" on it:
https://www.westmarine.com/buy/ronstan- ... cordNum=14
The keeper/retainer is basically a set of plastic legs with tabs at the bottom. Very nice, but would stick about an inch into the water underneath the hull, snagging all sorts of crap. Better to cut them off? Any other ideas? They look like this (this particular drain is too small):
https://www.westmarine.com/buy/yakgear- ... cordNum=30
Anyway, all thoughts or suggestions would be much appreciated. In the meantime, I'm staring at a champagne cork in my "odds and ends" drawer..... Man, one of the reasons that I downsized to a DS was to AVOID plumbing.... here we go again!

So now what? Get some 3M 5200 (or 4200) and just glue it back in? Can I/ should I screw the plug mounting to the hull? It's about 1/4 inch thick, so that's a mighty shallow screw... or do I screw it THRU the hull and then what?
Also, if I want to replace the whole thing, does anyone have suggestions? I'm thinking of glassing in the hole (glass mat, thickened polyester resin on both sides) and then putting in transom plugs. But does that really buy me anything? Would still be below the waterline, and not as easy to see. Hmm. Likewise, the only reason to replace the original mount/plug assembly is that the one I have is from the 50's, gawd only knows where I can get a replacement plug if I ever need one. Unless I can use an expanding flip-lock plug as a replacement? Dunno. Ronstan has a plug very similar to mine, but it has a "keeper" on it:
https://www.westmarine.com/buy/ronstan- ... cordNum=14
The keeper/retainer is basically a set of plastic legs with tabs at the bottom. Very nice, but would stick about an inch into the water underneath the hull, snagging all sorts of crap. Better to cut them off? Any other ideas? They look like this (this particular drain is too small):
https://www.westmarine.com/buy/yakgear- ... cordNum=30
Anyway, all thoughts or suggestions would be much appreciated. In the meantime, I'm staring at a champagne cork in my "odds and ends" drawer..... Man, one of the reasons that I downsized to a DS was to AVOID plumbing.... here we go again!
