Instead of going online for it, you might want to check out a dump where they dispose of cars, and ask them if they've got any Camaros. You can get a new one real cheap that way.
As for the paint job, in addition to the paint (which you will be special ordering if you want it to actually match your car, and can cost from twenty bucks to a couple hundred per small can), the cost of labor will be the real determining factor. A lot of the garages around here charge between 80 and 150 per hour, with a hood probably taking between half an hour (if it's primed but not painted) to a couple hours (if it's painted and they need to sand it down first) to paint.
I realize that's a pretty big range, but the devil's in the details, as always.