no massive update yet, I will be picking up all my wood/hardware tomorrow morning, evenings/weekend will be spent cutting to length and staining it. hopefully.... it's supposed to rain.
aside from that. a while back I bought a lunette ring that was on a 2" hitch bar thing (does it have a word?) so it would be removable and if I wanted I could switch the trailer to something else easily.
the original plan was to use 2.5" 1/4" wall tube for the trailer tongue. but today I realized with the way the lunette ring hitch was made, it was super close to sliding inside a scrap piece of 2x3 .125 wall tube I had. one side is flat, and is much too large to fit in 2" tube however the other side was angled, like a triangle. I didn't take a pic before grinding, but what I did was grind down the angled sides so they were flat, and fit very tightly inside the 2x3 tube. (obviously with a large gap on one end) so the tongue will be a little under 6 feet of 2x3 material, that goes back to the first crossmember. I will add triangles of more 2x3 from the corners of the trailer, to the tongue. this should be plenty strong in the end.
this ground downside had a slight "triangle" shape to it, that made it wide enough originally for a 2" receiver.
You can kinda see in this photo, how it was "triangled" to make up the width. so it really wasnt much work to grind it flat.