I had decided to make my own tongue box, instead of buying one. I look at several different ones, but none of them were the size or quality that I wanted.
I purchased a sheet of 1/16 inch thick metal and laid out my design.
Here is a picture of the my tongue box (only 3 sides of it) cut out and ready for bending. To do all the bends, I first scored the metal with my 4 inch grinder and a thin cut off wheel. Then I used metal clamps and folded it at the cuts. It went very well. There are 10 bends that I did just in making these 3 sides and the top seal lip.
And this is a picture of the box fitted in place on the trailer. I still need to make the bottom, the back, and the lid.
I have also finished the back tail gate doors and a grab handle for the lid, but I forgot to take any pictures of them. Will add some pic's of those later.
That's it for now.