If you were to get a compressor + spray kit ($300ish) and bought about 4-5L of primer ($50 - $150), bunch of sanding paper from 200 - 800 girt dry and 1500 wet n dry (probably around $80 to do the whole car) and just took your time doing it, you will save thousands. They charge you a lot more for labor to prepare it for spraying than the actual job...
And if you end up getting quite handy with the spray gun, why not give it a go spraying some color on it? I wouldn't recommend spraying 2Pac in your garage unless you got a proper extraction system, breathing protection (not just your typical mask either) and a baking system (65-80 degrees C) as 2pack has very dangerous chemicals in it and needs the heat to harden properly. Search "isocyanates" to find out about dangers.
It pays to DIY, Ive done a complete rear quarter of my old car after my mate slammed in to it with his motorbike (he was ok).
Cost me:
$20 for ebay hammer and dolly set (for dents to be pulled out)
$25 for bog
$20 for cans of primer and spray filler
$10 in different types of sand paper
$40 for an eclectic sander tool (small cheapy from bunnings, worked fine) ~ used it for preparation only, final work should always be done by hand before spraying.
I did it bit by bit over 4 weeks and got the curve perfect (hit right on the body line about 1.3m long and half car down), primed it with spray cans, about 4 coats in total (wet sanding between each) and got my painter to spray the colour which cost me $100
All up $215
Quotes i got to fix it were between $1100 - $1,800