Matching ext of paint.

All depends on how faded your paint is. When was it painted initially? Does it sit outside in the sun? If ya got the same coad (oh, paint code) it should match. I changed hoods like you're doing and it matched perfectly using the same paint coad.

How can you shoot the underside of the hood completely when its mounted? Normal process is to paint the underside of the hood, then top, then mount it.