Is it possible to replace the bottom two panels of the back door of my 2000 Isuzu NPR Box truck? They are warped, or have wood rot or something. I just had it wrapped with graphics, and when they pulled off the former wrap, the wood tore off....he said there was water damage under the old wrap, and it messed it all up. they just went over the bad wood and where the panels meet, it's not even and water is getting inside. DIdn't know if I can just replace the two panels and then get re-wrapped with my graphics or do I need to buy and install an entire new door!? How much is that cost?