bleeding the brakes doesn't help the shoes set correctly.
the springs are supposed to pull the tops of the shoes in until they contact the big pin. that action forces fluid back into the lines.
the bottom is set by the adjuster. due to different manufacturers or tolerances I have occasionally had to file the slot in the adjusters
to pull the shoes in far enough.
one technique I use is to lay the drum down and place the shoes inside it. find something the exact diameter of the pin and place it between the tops
of the shoes, put the adjuster in and see if it all fits.
it's not all that unusual to fine tune the fitment of rear brakes.
it's real easy to check the backing plate. bolt anything to the hub that you can manipulate to touch the rim of the plate. then rotate the hub.
a piece of wire like a hanger works perfect. since the axle has some in-out play, keep even pressure on it.
if the axle shaft was bent, how about the wheel?