Anyone have pictures or plans for a basic skeleton log car? I'm thinking of one about 20 or 24 feet long. I know that many of the logging roads just made their own, so I'm just looking for general pointers. What size might the main beams have been? I'm thinking of three lengths of (?) scale 12" by 12" beams. I will post a mockup soon for critique. In the meantime, I'm WIDE open for suggestions. Thanks!