In regards to the compressor, what do you want it for?
Is it for model airbrushing only? If so then the cheapest quiet compressor I know of is the Thayer & Chandler Air Star V which Badger is selling refurbished on their website for $99. It is a good little compressor as I used one myself at the Nationals in Phoenix. It has a built in regulator/moisture trap and an airbrush holder on top.
It is oiless and very quiet.
http://www.badger-airbrush.com/garagesale.htm
If you wanted something a little more powerful then the Badger Million-Air compressor would be the one I would look at. This is the one I use and it is excellent, although it is three times as much money as the one I mentioned earlier. In regards to spray booths in an enclosed area, the ones made by Artograph are good but they are not cheap.
Mike
“Wisdom is the right use of knowledge. To know is not
to be wise. Many men know a great deal, and are all the greater fools
for it. There is no fool so great a fool as a knowing fool. But to know
how to use knowledge is to have wisdom. " Charles Spurgeon