Well you can try it, but don't use locktite, use some sort of strong glue, if you can find one that works on metals. Locktite just stops stuff from vibrating loose, it'll be useless with the forces on a sprocket.
Sprockets don't come in different thicknesses so you won't be able to get any sort of lockring on.
Just try to never put any backwards pressure on the pedals, which is very difficult, and you should be ok. Just because you always stop with brakes it doesn't mean your legs won't slow down faster than your wheels at some point.
Well you can try it, but don't use locktite, use some sort of strong glue, if you can find one that works on metals. Locktite just stops stuff from vibrating loose, it'll be useless with the forces on a sprocket.
Sprockets don't come in different thicknesses so you won't be able to get any sort of lockring on.
Just try to never put any backwards pressure on the pedals, which is very difficult, and you should be ok. Just because you always stop with brakes it doesn't mean your legs won't slow down faster than your wheels at some point.
I still think freewheel is the best idea.