Hi Nelson,
There is a fine magazine out there called Sawmill & Woodlot
that has some advertisers showing arches & skidder tong
graples,etc. for sale. The 2 wheel arch looked easy to use/build if I could see a decent photo maybe. The arch could cary a single log completly off the ground, similar how the large propane tanks are carried around here by installers. The tongs were 3 point attached & used hydraulics to close/open the grapple & could grab onto a 30" or larger log I think. You still had to drag one end along but you didn't have to get off the machine to hook it on. I did save that clipping if you want to see a copy. Also my mill maker sells a neat skidder hitched devise for woodlot owners, I can give you their web address & you can have a peak at it.
treesawer