I am planning on building a new spray booth. Although I have no need for a portable one, the one I built last needs to be taken off wall to change filters, and it is quite heavy- made from thick particle board. I plan to rebuild out of lighter, thinner materials. I may also try to make filter (furnace filter) replaceable without taking the booth down from wall. I could post drawings after I complete it.
It will not include space for a compressor. In fact, I do not use the spray booth with my airbrush. I get so little overspray it is not worth it, I just airbrush at my building bench. I use the booth only for rattle cans.