The last "shop" not rv storage I built (20x30 due to limited space) I used sheetrock sideways which gave a 4' tall wall and then used 1/4 pegboard above that to go to the ceiling. I did that on 3 walls. Needless to say it was insulated before the interior walls were put up. I also put an outlet box every 4' around the 3 walls. 4 boxes per 20a breaker. I never wanted for hanging places or outlets. It had it's own 100A service with breakers for a 50A welder and a 220v 20A air compressor. Also had a 30A rv plug on the outside wall.
Food for thought.