You could also do what I did if you know a good machine shop/ fabricator who likes fun projects.
Get a "very cheap on eBay" left side lower. Have the axle hole machine out to fit the wide end of the axle.
Cut the brake tab that points to the right off and have it welded to the other side so it now points left. File, sand and finish.
Cost me a total of $40.00. Been riding it like that for about 8 years. No one can tell the difference.