Chris that back space where the van is parked looks ideal for a Tumble duster and work floor,checking in rugs,pre-dust inspection,tac-out area ,post wash final prep and wrap.IF you can afford the space. If you slide your wash floor down into that corner towards "rotate floor" and get the duster into the garage area I think you'll be happier. I Like Brians idea of walking around with 2x4x10's. Also remember rug carts are a god send, the chemicals and stuff in the garage area can be placed some where else to free up space maybe some of the rooms that can't be moved or wall shelving up high so carts can be placed below. Where were you going to do your final prep, pile lift, touch up and post/pre wash. Are you going to have clients drop off rugs to your shop? Where would that be? Also Power, and water access? Lot's to think about. I started with 20'x50'-20x30 of that was dust/wash dry combo room..ufda! Now in 40'x50' still not uber efficient but making it work. Hope this helps.