Thx @mzagmajster,
a) Yes, you are likely correct that this is best done as an enhancement to the Core rather than as a plugin, due to the 16 (or more?) points of dependency I mentioned above. In fact, one of the forum moderators even suggested that this might not be possible with a plugin here.
b) I agree that a developer could create and maintain a plugin for most of the ideas in this “Ideas and Feature Requests” forum area. However I am posting to give the core maintainers a single place to refer to and debate this recurring request when considering inclusions for the Mautic core.
On the other hand, if you think this can be done as a plugin and are offering to donate a plugin to the Community then that would be awesome!