I was thinking about a She Shed this morning with I saw a kit on Overstock dot com. I would want enough room for an eventual nice long arm plus a place for all my fabrics and a nice cutting table.Right now I have spread out in out 2 extra bedrooms. One was converted for my studio 20+ years ago and served well until I got the Grace Frame, which I am not using right now. Anyway the She Shed on Overstock looked perfect since it had all the space I want as well as a small porch to relax on and maybe do some hand stitching.
Sorry I can't help you on this one other than to share my own desires