How to limit RTF field word count? It is easy to set in the text field, but I don't see such option in RTF. How can I do it?

Alternatively, I can use a text field, though it doesn't output new lines as paragraphs - it is possible?
It can be done manually with Redactor Limiter javascript plugin that would be side-loaded to CP with, i.e., Control Panel JS plugin.

Alternatively, Redactor Extras plugin for Craft can be used, that contains and loads Redactor plugins itself.