My dash was atrocious when I changed my heater core a couple weekends ago. I explored an option prior to this and just sat on it, but when it crumbled all to hell I had no choice.
makes dash panels that silicone on top of the current damaged dash. They are color matched and no one is the wiser. The price was right and my truck has a respectable looking dash again. The only drawback is that it takes forever for the silicone smell to wear off after gluing them down.