Blank canvas, steel sided 40x60 pole barn. Thoughts on insulating, electrical, heating???

@Johnny Mac and @70dart340 Have you seen how to add an aftercooler to your air compressors? Look on You Tube and search "Quincy Aftercooler". There is a guy who has a wood shop, who got a Quincy compressor and added a Derale transmission cooler into the lines between the pump and tank. It is amazing what a difference it makes. I ordered all the stuff from his links to do mine. It will keep tons of water out of your compressor tank and air lines.