What the heck, I'll just do it here.
You'll have to use some imagination and remember a few things. I only have a 5' x 8' single axle trailer that this will bolt onto. Removable. I don't need all the extra tongue weight all the time. I'll only be loading small logs up to 1000#. Tires don't like much more. My winch is only 4500#. I'll have a roller attached to the back of the trailer or I'll make some sort of log arch.
The upright in the 1st pic is 2" x 3" x 3/16" tubing. I'll be cutting some of it off so I have approximately a 24" height. My trailer has 12" sides and when tilted, I want to be able to run the cable between them for a log drag.
I'll weld the plate (1/4") to the bottom of the tubing approximately as shown, except centered. The plate will have 4 bolt holes so bolts can be installed in the outside of the tongue and through a mating bottom plate. Removable. an angle brace will be welded from the vertical tube to the plate.
The receiver in the picture will be cut so I have a 5-3/4" long piece. Cut at tape line. This will be welded directly to the end of the vertical tubing with a 1/4" over hang on each side. Tubing is 2" wide and receiver is 2-1/2" wide. Should be enough room(?) for a fillet weld.
The square tubing holding the winch plate will be inserted into the receiver approximately that far as shown. Far enough? If I had to, I could drill another hole about an inch to the left of the existing hole.
That's all I've got figured out so far. Advice, comments or criticism welcomed. Laugh at my idea if you want to. Let me know if I'm doing something stupid.
Thanks