Thanks Mark. I am only cutting for firewood, so I was only looking to lift the front butt to keep it from plowing my various trails, and to keep it from hanging up on roots and rocks. I do most of my skidding during the winter when there is a frozen snow covering. At least I did when we got snow covering. Most of the time I cut and split in place, and transport the loads of splits with a cart behind my ATV. Keeps me on my low impact plan.
Here is an old thread where I outlined my build:
Log Arch Build , but there are plenty enough other builds documented here, and in fact, the concepts are very complicated, so handy folks can just start building and end up with totally usable tools.