Ok, here's the crane turned, I like the looks, but it causes one minor problem. I can't position the office structure properly. So question still is, lopsided track, or centered?
As for laying it in concrete, as Rico said he's seen, I've thought of that. I decided on laying it in dirt, as it is a scrap yard, they're more apt to have a dirt lot, then concrete. After all there will be excavators working there, along with the overhead crane.