I am selling my log arch. It has been a wonderful tool for me with the large drafts. With my downsizing to a pair of ponies I will use other tools. It has a set of shafts as I have used it single. When Rusty was on it he could back and fill even with the 4 wheels into the tightest spots. With a pair on a long yard one could really move some wood and the ride is very easy on the knees. $1,000 and shoot me a PM is you are interested.
Here are some additional photos of the walking beam. Two show the pvc pipe as it would lay when hooking up and the other shows how the butt lifts as the roller travels up the bar. Wooden saw scabbard is shown.