I have a white 98 GT and want to get a design painted across the doors on both sides. A design I really like is this one here: link
I'd like to get that design in black on both sides of my mustang. Can anyone give me a rough estimate on how much that would cost? Thanks in advance!

 

I would guess somewhere between $500 and $800. The materials wont be that expensive because that wont take much paint to do. All of your expense will come from prep work and labor.

 

The price for custom paint work will vary from artist to artist so get as many estimates as you can.Insist that you be allowed to actually see and feel the finished product.A good job will have no feelable edges when your fingers are passed over the design.
That blue stuff under the hood definately ruins the whole car.The problem is all that bright color draws your eyes toward the engine bay and there's nothing else there to look at.However,it is a good lesson in what not to do.