APS is out of the sailboat parts business. Now clothing only.
I would suggest the Intensity Sails Anti Turtle Mast Float. I use them in our junior program (C420's) and I think it's almost impossible to turtle with one. It's light (the worst place possible for weight on a boat is at the top of...
Looking at your pictures it doesn't look like the bailer will function as it is, even when open. It doesn't look like it will be lower than the hull. The bailer needs to be in the flow of water to suck the water out.
A light boat like a Laser 2 can be a problem at a mooring. Shifty, puffy winds in a squall can catch the boat from the side and capsize it.. It would probably be worse moored from the mast rather than the bow.
Remember, when the boat is on its side, capsized, all the water in the mast will be at the top. Try lifting 1/2 gallon water (4 lbs.) on the end of a 16 ft pole. All #'s are approximate, and apologies to our metric friends. This is in addition to the regular weight of the spar and wet sail...
Unless you are racing in sanctioned Laser Class races why not try an Intensity MK2 sail? Now on sale for $149 plus shipping. Comes with the new type battens. I have one and it's great. Our local fleet actually encourages their use to keep costs down and put everyone on an equal footing.
Check out the Intensity Sails anti turtle mast float for the c420. I use them for our junior class in c420s and it is almost impossible to turtle when used. No modifications are needed and it is pretty light.
Because if you are OCS in a pack of boats it's easy to pick out the one with draft stripes. For that reason in many competitive classes ( I also sail a Thistle) most boats are white so they don't stand out on the starting line.
Yep, I teach sailing/racing at a small club that should remain nameless, half of my students (victims) have learned to face backwards and steer frying pan from there parents. It's hard to break to habit, but it's the only way to sail most classes.