Great shop...you are well on your way to a great hide away!
I used FRP (fiberglass resinous paneling) on the bottom 4' of my shop...it is bright white, really durable and
oil and grease wipe right off...I just started with some 1/2" OSB first and then the paneling...it is available at LOWES and HOME DEPOT. They use it a lot in fast food restrooms, because it is practically indestructable. Also, you might find it better to have those wall outlets on a couple different circuits so you aren't overloading one breaker with mutiple equipment running. Just a thought that worked well for me.