Don, I used to mine coal down in that area just north of Jenkins, KY. We often drove into Wise, Virginia to grocery shop as it was closer than going north at the time (cheaper too). We also shopped in Norton, and would sometimes go down to Bristol for shopping and racing.
Many of our parts came from Carter's dealership in the area as they actually had a better stock than Whayne Supply over in Pikeville. Their servicemen couldn't come into Kentucky though.
It seems like I have seen some models with scale Erlau chains on them. They would make a nice addition to your machine. You ought to be able to get some ideas for models right there from M&M Construction's yard down old 27. He had a pretty good spread in the yard when I was there last spring.
If I get up to Gaylord to check my property over near Elmira and visit family this coming summer, I'll have to look you up.