I made the mill building probably 15 years ago from lumber milled from left over deck Mahogany scraps. It’s got a simple tar paper roof and the cupola houses a speaker for the sound system. I turned a small drum out of brass on my lathe and using hardware for RC planes/cars like pulleys, wire hold downs, and fine cable, I made up a fully functional scale log carriage drive mechanism. It runs with a small 12v gear motor and each end of the frame has a magnetic prox switch, a magnet on the carriage center controls the forward and reverse motion through a wired cube relay. There is also a small prox for the sound system that is activated when the carriage is full back and starting forward so the sound coincides with the travel and motion of the carriage. ano small gear motor drives the saw while another motor mounted in the rafters drives a line shaft with phono belts as the drive belts which drives the swinging cross cut saw. The crosscut saw operator swings the saw back and forth via a flexible cable attached to another gear motor and into the operators hinged body. Lighting is all 12 v. I have a video but not sure how to post it. I haven’t gone outside yet other than just a single loop from my basement and back but many people love watching the saw mill run While it sits on a table in the basement.