Be sure and take pictures of your vent cover hinges (what's left anyway). If I remember there are at least 3 different manufacturers of course they are not interchangeable. And the vents on my new rig weren't the ones the factory said I had when I had to replace mine in a similar incident.
I found it easier to just order my fender covers from the factory. Just takes a lot of patience
Scott and Liz - Southern NM
2012 Wildcat Sterling 32RL - w/level up (best option ever)
2007 Chevy 2500HD 4dr short bed Duramax w/allison
Reese Fifth Airborne air ride king pin coupler with Sidewinder