Backyard paint booth

Any suggestions on the minimum for painting a car in your own garage,my car is in peices,and I at lest wnt to cut in, and prep the body for paint. I dont know if I got the guts to do the final spray, but i do need to paint and cut in as I put it back together,I'm looking for advice on how to control dirt, ventilation, air comressor psi settngs etc .any tips would be appreciated. I am not very experienced at paint work, but I aint rich either,and gotta get my car back together !