Custom rss feed

Hey,
Can’t say if this would be possible for the ads, as I’m not sure what you are using.

However, you can check here https://www.wpbeginner.com/wp-tutorials/how-to-create-custom-rss-feeds-in-wordpress/ and the official Codex page https://codex.wordpress.org/Customizing_Feeds for some ideas.

Good luck!