Trailer Brake Shoes

Ordered up the whole brakes. Anyone know the torque specs for bolting the backing plate to the axle flange?

Sounds good. Even if I could get by with just a couple shoes it will be nice to have all new brakes.

Yep, simpler and usually cheaper to buy the whole brake backing plate with shoes, and possibly the hub, too. I use e-trailer.com.

consider the never-adjust brakes, I changed my brakes out to those and I'm very happy 2 yeats later and 10,000 miles.

Well, sorta defeats why you had the bearings done :B, but yeah swapping out a loaded backing plate can be more cost effective. Not so much because of the shoes (a trailer supply house will have proper shoes for about half the price of a loaded backing plate) but more because when you are ready for shoes you are also ready for the magnet and spring kit.

Makes total sense. Probably easier labor-wise to replace than repair. Couple thoughts:
First, I wonder if the trailer shoes have automotive equivalents. I'd think they do, but have never checked. I have Kodiak disc brakes on our boat trailer. Before that had Tie-Down disc brakes, and the install instructions specified the automotive pads to buy as replacements. A skilled parts person should be able to answer that. I usually take questions like that to NAPA. Pick a slack time of day...
Check Eastern Marine for brake replacements. I've found them to be very competitive in pricing, and they know their products. When I needed trailer cross members, they actually went to inventory and pulled the measurements I needed..
Oh, Edit, Check the condition of the Wiring. It often runs through the axles. Well protected but there's a risk. On older trailers, the inside of the tubular axle gets rusty and the rust flakes chafe through the insulation.

Yep, I just replaced my brakes and there were complete assemblies available for about the same price as just the shoes.

Something to think about though. Are the assemblies from eBay self adjusting or manual adjusting? In fact, are your current brakes self adjusting? If they are manual adjusting, you need to adjust them every 3000 miles in order to maintain adequate braking. I upgraded when I did mine and put in "forward" adjusting brakes manufactured by Lippert. It was a little bit more money, but at least I won't have to adjust the brakes every 3K miles.