Ideas for a Compost Bin that is utility tractor sized

[wyoDreamer]

I currently have a large compost pile on the edge of a field that I am going to be spreading onto my garden. This field is going to be fenced for animals, so I will no longer be able to compost there.
I would like to build a "compost bin" that will contain the materials better, but I would still like to be able to use my utility tractor with a bucket to turn the pile.
Anyone have pictures of a compost bin that they use a tractor on that they are willing to post? Any thoughts/suggestions on how to build such a monster?

 

[Percheron chick]

Build one out of pallets. Standard is 40x48. Tie them together with baling twine. You can double them up or use the extra large that are 6'+. Just cut the twine, remove the sides, flip. Best part is the pile is aerated top to bottom and pallets are abundant and free.

 

[wyoDreamer]

Thats a great idea about the pallets.