you could always cut the spacers from the back of the bag support frames and have a flat plate the size of the area of the easy brackets made then just bolt the easy brackets to the plates.
You would then have still kept the frames with bling attached and kept the excess width down as much as possible, I have tried the other method some have suggested (but ended up going back to the full std fitment) and while strong and safe, I like you, like the bling and considering doing this myself so am planing on picking up another set of support frames to experiment with