Updating Project with Relume Style Guide: Request for Feedback

Hey everyone! Sorry if this isn’t the right channel, but I’ll give it a shot. I’ve got a request from a client to update an older project I did a few years ago, before I started using Relume. I’d like to update it with the Relume style guide since, at the time, it was using the old Finsweet client-first style guide. My plan is to create a draft page, copy the latest Relume style guide over, modify it, and then just rename the classes in the main pages accordingly. After that, I’d delete the old style guide. Does that sound right? Thanks, and sorry again if this isn’t the place to ask!