Every time I talked to a trailer place, they never knew anything about aligning axles. I did my by myself as best I could when I installed my new axles, which were bent, also causing wear like you stated. The actual spindles were bent up, causing that wear. I aligned them myself with a laser sighted level. I have about 800-1000 miles on the setup so far with new axles, new brakes, and new tires, and all is hunky dorry.
Do a search here on "Kodiak Brakes" for my thead.