[mockingbird812]

Super Dave, this is exciting. So figure your power requirements and specifically how many outlets you need and then multiply x2! Can't have too many and if not careful will end up with too few. Think about internal wall or external to the wall air lines. Internal look nicer (to some - just ask Eddie, he has a gentleman's garage ;>)) External can look steam-punk cool if you use copper and are easy to detect/fix leaks. Consider lots of drops (i.e. fill tires or place a dust-making media blaster outside of the shop) around the shop and don't forget external drops but consider freezing temps so insulate external air lines and have water evacuation levers at each drop. Windows are good for natural lighting but consider placing windows higher up, say 8-10 feet off of the deck for security/prying eyes reasons. Consider where sun light will be cast (i.e.don't want it fading your car interior) and consider glass filtering to mitigate this. Lots and lots of insulation in walls and ceiling (generally inexpensive) and consider 2x6 wall construction to give you extra room for extra insulation. With yr high ceilings yr utility bills can get expensive. For concrete floors inside and near your shop consider saw cut seams in concrete (vs standard wide rounded seams) so when rolling things like engine hoist or jacks or other heavy loads on smaller wheels and they contact the seams you don't come to a sudden stop/tip over. that's all for now.