Blazer cargo area floor swap - old floor removal tips

[lks dcvn]

I have seen a few threads where people have replaced their rusty cargo area floors with the new aftermarket ones available now.

Looking for guidance on if you pulled the old piece as one unit or cut it out to make removal easier. Keep the bedsides in place or remove those as well?

If there are tips/advice on doing this replacement - I welcome any insight you can provide.

Thanks!