Well, still waiting on a pair of 3500# hubs for my axle. Called Northern Tool, and they don't know whats going on, and had to call me back. It turns out that the hubs are still on back order, but the shipment of hubs to their central warehouse from the manufacturer that was available earlier this month (when they first said that they would be here) wasn't large enough to fill all orders, so I had to wait for the next one. I could start fabricating the top of the trailer (box sides, tailgate, ect) but I wanted to do that after I had the axle on it because it is getting harder and harder to turn over by myself, and the additional weight of the walls would make it that much harder, particularly with the full weight weight of the trailer resting on the walls. Well, it wouldn't be a problem if it was just resting upside down while I put the axle on, the problem would be rolling it over for the last time with the entire weight on the upper corner of the wall as it rolls. The front would be supported, but the rear wouldn't be, and I think it could bend. So I have decided to just follow my original plan, which means waiting for the hubs to show up.
Ugh.