I have the same setup on my Cyclone. Ours came oem with the Nev-R-Adjust brakes and after 10000 miles are still functional. I had the wheels off when I repacked the bearings a month ago and they were still ok. As you have probably noticed, the linings when new are in my opinion thin to begin with, only about a 1/4”, so any abnormal wear will grind them down fast.
The brake sets are side specific but I think you would have noticed if they were wrong.
In my opinion, the main concern, as previously noted, is to be sure you manually adjust them tight and then back off till the wheel spins freely with only a slight lining noise. Applying brake pressure and then rechecking and tightening also helps to seat linings. You may be able to access the adjustment from the inside side of the backer plate. It’s more difficult than on an automotive brake but helps if you have the flat tool that’s curved that is specific for that purpose. Sometimes you have to adjust, reinstall drum and then readjust again. Difficult when the drum is worn a bit.
And off course, check for any binding that could hinder movement of both front and rear shoes. Try to get a picture perhaps online to compare your job before reinstalling the drum. To late in your case, but it’s advisable to always leave one wheel untouched so you can refer back to it. Good luck.