I’d check the posts for tips on dealing with loose posts, broken wires, or worn panels and try the fixes others found easiest before spending on a full replacement.
I had a similar headache recently and fixing a few rotten posts made a bigger difference than I expected. I also had some warped boards replaced by a crew I’d used before for deck repair Tacoma, and they handled small fence fixes without making it a big production. Even simple stuff like tightening loose rails and adding fresh screws can hold things together way better than you’d think.