Mine cost 14.735.46 $$$$
My paint came with the truck when i bought it new
But seriously you can spend any where from 1000 bux to over10.000 it all depends on what your looking for as far as quality and the pattern or lay out or graphic's how many color's are used and so on.
I can tell you this much your not gonna get alot of paint job for a 1000 bux.
A run of the mill decent paint job will be around 3 to 5000$