Yes I use a makeshift spray booth on the farm where my lockup is, with a massive compressor. But to be honest a cheap 25 litre compressor will do the job and will set you back about £80- £120 ( screw fix has a good Stanley one). Spray gun- mines a devilbiss ( best make you can buy ) and se me back £250, but again a cheap one is about £30 and will still do the job much better than a rattle can!! If you can borrow a spray booth then go for it - he will have compressor and airlines setup, and the finish will be so much better than trying to do it under a tent on the drive!! If you go for this option, then as long as you take care and buy a good quality 2 k paint, the bodywork finish will last, whereas I think if you were to try and rattle- can it, it wouldnt last, wouldn't look as good, and wouldn't protect the car as well ( rust).
I'm by no means an expert, but I just practiced about a bit befor starting on my car, and you soon get into the swing of things!! Tip- use a wide fan on the gun - for faster and thinner coverage, and when you start laying the paint down, move real fast round the car so the paint stays wet, and you don't get dry spots.
