Wonderfully executed, dirt roofed workshop appears to be just big enough. As long as Jim doesn't trade in his Mercedes SL on a 600 Pullman, it appears he will be able to be pretty productive in his modest space. I particularly like the furnishings, especially that green cabinet.
I do wonder about all that unfinished plywood. Impossible to clean, I wonder how it will age. I suppose it could just be painted later.