Its amazing how people love to spend other people's money..... which is fine if you are independently rich.

Go for the Lowes fix. It will work but not look as good as some of the other suggestions. I have a Champion in my '64 Polara. It's a 22" and since I'm cheap I spent about $12 and built my own custom fit shroud. A little left over 18 gauge sheet metal, some rivets, and the whole thing is encapsulated in two layers of fiberglass and resin. Looks better than the OEM in my opinion and works.