& floating bottom two..In regards to the screws on the bottom, they're actually floating. When the throw is off, you can nearly spin the lower part around with the space it leaves. The screws are just to tighten the plate to the snares, not actually going into the shell at all. That said, I'm sure I won't "ruin" it, per se, even if I drill holes into it. I'd just rather not have extra accidental holes in there and want to change the throw only ONCE for my lifetime, at least.
I'm not much of a metal fabricator, but I think you're right, this should be the way to go. I think if I can figure a way to make this work, Making it extend out from the hoop a bit then past the bead maybe? If its attached well enough at the hoop, it should be no problem for the other end to rest against the shell with a felt or rubber bumper.Make an adapter plate, then use whatever you want for a strainer.