You would likely need to combine the RSS feed articles with data provided by a service that scrapes the website in order to identify where the article is placed

You would likely need to combine the RSS feed articles with data provided by a service that scrapes the website in order to identify where the article is placed at any one point. Sounds doable even if scraping is always fraught with numerous pitfalls. I haven't heard of any such solution, and building one is not on my todo-list, sorry.