I don't think there is anything wrong with using a log arch, just not that one. Some people do custom sawing with Petersen and Wood-Mizer type saws, doing small jobs, even sawing their own trees to build their own house with. Pulling select trees out of the woods using a four wheeler, or even a small tractor can be a lot less distructive to the other plant life than a skidder, and they are within most people's reach as far as budget. I personally didn't like the tire size offered on that example, nor the lack of bracing at the top where the tongue starts. Couple that to the straight upright angle of it, and you have an accident waiting to happen. Will it be disasterous? Who wants to chance having a log loose rolling down a hillside out of control? In my neck of the woods, it would probably just sink into the mud, but with those tires, it wouldn't make it far.
I also wasn't trying to step on toes, and hopefully that isn't the original posters ebay auction, just something he thought was neat and of use to others on this forum. For that we should be appreciative, especially for those who point out the flaws in it's design. Should anyone purchase one of those, feel free to chime in with the results of it. I would be interested in knowing how long the welds at the top and start of the tongue hold up. On smooth ground, it will probably do ok, but how many log arches are used on pavement?
David from jax