We may be able to provide one other fix. Luckily I have one of the last sets of the J22 Spreader Repair Kits from APS. The trick to installing these is cutting down the spreader by the thickness of the SpreaderBarBracket, 0.125" or 1/8", such that they will line up with the preexisting holes on the spreader bar. Also, you must re-cut the spreaders at the proper angle of aprox. 20 degrees aft.
We're working to make duplicates, but it will take some time. Send me an email at mail@dwyermast.com if you'd like to pursue it.