Cracked bed/wheel well support, wtf? Need help finding repl. part.

[fur_pig]

I bought a 2018 that has some odd damage including a cracked drivers side bed/wheel well extension panel. I can't for the life of me find this part in a diagram/microfiche. Has anyone seen these crack before? Anyone find me a part number?

 

[4rdFan]

From a quick parts search, it looks like you have to purchase and replace the entire inner wheel sheetmetal: