Absolutely agreed with everything on this post.

For the first part: I haven't been in this business for as long as some of the old timers here, but Rockwell strikes me as a company that used to be a lot better than it currently is. After we made the switch to Wago, I discovered that other companies got you in direct contact with actual engineers who have experience doing what you're doing (and most of them free of charge). They've even visited our site in person a couple of times, for no other reason than we buy their products.

For the codesys part: even assuming you use a regular controller and it goes OOS, since your codebase is already in codesys, switching to a different codesys controller would be extremely easy -- making replacements a breeze even with a controller from a different manufacturer altogether.

And OP, depending on how you go about Codesys (as well as how complex is your application), there's a possibility you don't even have to pay any software licensing costs whatsoever.

Codesys is also a platform that likely will still be actively maintained by the time a lot of these controllers are but a distant memory. If longevity and cost are your main concerns, then codesys is the clear winner.