Need A Slightly Older Version of Motion - The App Store Doesn't Have That Option

I'm running Mac OS Ventura (13.7.8) on a 2017 MacBook Pro. I'll be on the road and need to download Motion for some minor tweaks to a project, BUT... the current version of Motion is incompatible with my laptop. No problem, right? Just log into my App Store account and view my purchased items (of which Motion is one), and the App Store will allow download of a compatible version, right? Nope. The popup I get flatly states that I need to update my OS to 15.6 or later. No other options are available. Doubly annoying is the fact that I can choose iMovie and some other apps, which do allow downloads of compatible versions. But not Motion, FCP, or Compressor. It's kinda too late for this road trip, but for future use, a workaround would be VERY welcome.