As you start to redesign your website to become mobile friendly here is a tool that will help.

I think the best thing to do is Hide all pages but the home page.

Do all your edits and then check to see if the site is mobile friendly.

https://www.google.com/webmasters/tools/mobile-friendly/?utm_source=wmc-blog&utm_medium=referral&utm_campaign=mobile-friendly

Then unhide the next page and work on it. 

and check a gain.

I think doing one page at a time will keep you on track and is the easiest way to get it done.

Hope this is of help.

Web Design by KaSondera