PUIG Bar Ends Sport Model Mounting instructions

Hello! I've reviewed the mounting instructions for the Puig Sport 21011N bar end weights. This document outlines the process for selecting components based on your handlebar diameter, and indicates that the mounting is designed for one person and should take about 15 minutes. I'm ready to answer any questions you might have about the installation or the product itself.
How many people are needed for the installation?

How long does the installation take?

What should I do before starting the installation?