Should I market a WordPress plugin or the SaaS? Two sides of the same service

My Website Toolkit is a hosted service to crawl CMS based sites and provides a good level of value as-is, finding broken content etc. Pure html, Wix, Webflow or WordPress as long as it's html it's good to go.

I am also looking to build a companion WP plugin that provides extra event tracking to tell the main service when something has changed and by whom, posts or pages updated / deleted, size of database etc. This would trigger on event page checking outside of normal weekly schedule.

Here is the catch, what should I market?

I could sell it combined as a premium plugin when all the good stuff is off server. Shelve my plans for the SaaS frontend and try to pull it all into the admin area.

Or build the SaaS element where you control when your site is crawled and also manage the stats. But how to then charge more for the plugin based on extra value and processing?

Would it be odd having WooCommerce and paddle to pay for the SaaS but then use freemius to manage the plugin licensing and updates side?

Lastly should they be two separate projects, but you just need one to use the other (ie WooCommerce extension is useless on its own).

Thanks for reading, interested to know how others have handled this type of split.