There are still a few things to install, but I am almost there. I am charging the batteries and it does function on aux power, so I think everything is alright. The cab is MTH, the sides, roof and ends are my own, machined on a Bridgeport mill. The electronics are MTH, sound, lights, everything. I am using NWSL truck and adapted the speed sensor. The B unit houses the batteries, the baggage car houses the TIU. I will be showing a video shortly of it running. I sure like the mars light and the number boards show up real bright. Does anyone know if Protosound 2 has brake squeal sounds? OK here are some pics.