Well we are no longer in the RV, having bought a house a couple of months ago. We looked and looked, and had a terrible time finding anything we liked, and I ended up with another teensy sewing room, but it's definitely bigger than the RV!
Once I figure out how I want it set up (tough at only 12'x9') I'll probably bring in a cabinet maker to build cabinets for my machines. (maybe, still up in the air on that). I'm currently using my old Koala cabinet (it survived 4 years in storage) and 2 six foot banquet tables.
Oh for a sewing studio!