Any of those colors would be easy. If you do all the prep work, and either dont mind purple inner door edges it can be rather cheap.
Sand her all down(wet) and get the clear off.
mask it up(mostly) then bring it into a shop.
Get them to put a plain old base coat on(to keep the color even).
then get a few matalic coats done.
The real money is in the prep work. Taking out dings, and priming. Its pretty easy for a body shop to spray a whole car a few times over. (its also easyer if it is the whole car because you dont have to mask off body pannels, and when you do that you get mix matched paint.)
My personal prefrence would be black.