Update... Pic of 1/2 the shop in progress. Yes, it's a complete and total mess in this picture. Cleaned up since.
Old shop = 20x50 building, heated, air conditioned, insulated, etc. Well lit. 3ft bench all the way around the walls plus movable tables in the middle.
New shop = 30x80 building, heated, but not air conditioned yet (in work), insulated, sound proofed. Only 1/2 done so far. Remaining half in work now. ETA of another few months. ~3ft deep work bench all the way around, roughly 130ft+ of work bench. Repurposed 18" tall kitchen cabinets above the bench, 22 installed so far, another ~30 to go, 2ft deep shelf over the top of the cabinets. 200 amp service to the building. Concrete floors front and rear. Plan on laying down some of that rubber flooring near the work benches...take care of the foot fatigue. In-floor radiant heat to the back half of the building (the part that's not done yet). R60 in the ceiling, total R22 in the concrete block walls, R12 on the 16ft garage door. 8 south facing single hung insulated 36x24 windows. 2- 5KW electric heaters in the front, 2 more in the back. 2- 4ftx8ft 'tables' made from 12 kitchen base cabinets with a piece of 3/4" ply over the top of each, both on castoring wheels. Enough base cabinets left over to build 3 more of them. Total of 1.5KW of fluorescent lights in the front half, 2KW planned for the back half where the 'clean work' will take place, including another roughly 1KW of lighting under the overhead cabinets shining directly down on all of the workbenches.
All it's missing is a killer stereo system to blast out some Iron Maiden while I'm doing the sensitive stuff.