Looks much better now, love it. This is what I did with my plate. Vic slimline plate, trimmed in a guillotine (removed white border), exposed metal on sides painted black, hand filed corners to fit the bar, rubber spacers made up for behind the plate so it doesn't touch the paint, bolts painted black, nutserts into the bar.
Vicroads and the local police OK'd me modifying the plate in this way.