Hello from South Dakota!!!!!
Peter, I have wired alot of log homes in the mountains of Colorado, and here in the Black Hills. Don't over think them!! They are just a house. You have to think about where the wire starts, where it ends, and how to get it there. It does take alot more wire for log than it does for stick.
You need to have a good chisel for your boxes, and you would be best off if you invest in fish rods instead of a fish tape.
Like others have mentioned you will want to meet with the builder before they lay any of the logs down just to make sure you are all on the same page.
If the builder is going to drill the holes as he goes, make sure he understands that he must drill all the holes from crawl space to rafters. It will make changes easier (not that they will be easy) when they happen.
When you have a box cut into the face of a log just use an orbital sander to cup the location so the plate fits flat, or you can do floor boxes on the main floor. Most log homes end up with 2x4 tounge and groove flooring that finishes the cieling below making it an eye sore to install floor boxes on the second level.
If someone forgets to drill a hole or you can't fish through the ones that are there, you can router a 1 1/2 deep groove in the door jams before the doors are set. then drill straight into the log where your switch is at and in again to the light.
One more thing. Logs settle and heave over time, so leave slack in the wire to alow it to move.
There are so many tricks to make things easier when doing log homes that I don't know how to list them all. If you have any specific questions please do not hesitate to drop me an e-mail.
Jon
