When I first started building back in the 50's & 60's I probably used the kitchen table to build on or a TV tray, remember those? I've spray painted my cars outside, on the back porch, etc. I even remember putting newspapers on the bed and spraying over them. The bottom line is, do you want to build or not? If so, make do whatever means you can find. While I now have a hobby room/den, I still don't have a spray booth as I don't really have the room for one, and I still use "rattle cans" even though I have a compressor and two air-brushes that I haven't used in I don't know how many years. Yet I still build, belong to a few model clubs, and enjoy NNL's. I build for myself and enjoy the hobby very much.