:word:your painter is still gonna have to smooth the valance, they dont make a paintable pre-smooth one like the upper bumper cap.
Getting your plastics painted is not going to be cheap anyway. It takes alot of prep work just like said before. You could take a day on the weekend and do all the work yourself if you wanted. Just sand, prime, and sand some more. Get it to a good point and then take it to the painter to finish up.:imo