This thread will take a few weeks to mature, so stay tuned.
The axle arrived yesterday (in discussion with freight company, I found you can reduce your freight cost significantly if you pick it up at the terminal--residential delivery added $55 in my case).
At first look, the axle was manufactured very close to my specs. I'll only know how precise the mounting bolt holes are after I trial fit the axle. My first impression is very good. One concern is that the weld bead on the axle bracket may interfere with a good, close fit to the flange to the frame. So I got under the trailer and took a look--Yes! AS put a weld bead relief in my frame member! Too cool. I do have a remaining concern that the Axis bead is just a little too big in spots and may require a little grinding, see red arrow.
Yesterday, I took a look at Fred Coldwell's axle on his '64 Globetrotter and it does not have the weld bead relief. I'll get some photos today to make sure and will post them later this weekend. In any event, it is something to watch for, since Fred's axle fits perfectly in the frame cutout and the bracket on the axle is tight to the frame--no room for a weld bead as far as I could see.
One [sort of] comical item is that the shock bracket is on backwards. No one seems to think the shocks are really needed, so no biggee, but I will get a welder to reverse them eventually. I took a look at the drawings which I sent to Axis and I can see how they could have easily been read the other way. urk, dope slap to me.