I am pretty sure that the past decade no one who has been asked to make a paginated version has succeeded.
Here’s a recent response to a simillar request:
Here’s another such topic: Is pagination impossible or just hard? - #3 by merefield
Some popular sites that your company may have heard of that have adapted to infinite scrollling include Facebook, LinkedIn, and twitter.com. Most people who were using paginated forums have switched to Discourse.
If they really want pagination they should use different software.