Rocker panel rust repair

Hey guys, this is my first forum post with this truck, I've owned it since October 2024 and absolutely love it. It's just about completely stock and when I got it, had a lot of original.parts that it shouldn't have at 382,000 km so I've been slowly replacing parts. It is somewhat rusty as it's an Alberta truck but frame is good and body is pretty good too, or so I thought. I went to the carwash today after not having gone in a while and noticed a rather concerning passenger rocker panel. Iam struggling to find any replacement parts for this, it's not really in the budget to get another cab as I've seen suggestions on other threads, and id really like to get this taken care of soon. I am fully prepared to cut the old one out and weld in a new part but I need to be able to get that part first. Anybody know where I can find a rocker panel for my truck? Online or at a business, I am located in the Edmonton area. Thank you.