I have two winches powered by gas engines. One is set up with a splitter and the other as a donkey being strapped on to a stump. The donkey pulls about 6 to 8,000 lbs. For moving logs I built a 4 X 6' cart with four automotive wheels and no tires. I started with wheels and tires but soon decided tires were not necessary. The cart has the capacity to expand a little as the chassis is slightly bigger than 4 X 6. to steer I offset the cable a little allowing it to turn some around obstacles I can move a 4' X 20' log with no issues. I have side boards for the cart allowing it to move almost 3/4 cords. Unless the ground is very soft which is very very rare in California. The log splitter winch is fully remote controlled but have not been able to set up the donkey winch yet. The log splitter winch has 150' of 3/8'' cable. The log splitter can pull itself up pretty much any hill at any direction as the tongue wheels steer. I probably will not try to move up steep embankments as this could be a life threatening ordeal. At the moment I estimate the splitter to be able to pull up to 3,000 lbs. The splitter seems to be the most versatile tool I own. Thanks