Create Custom Template for Sales Page

1. I’d like to create a sales page on my site which uses Customizr theme. The sales page cannot use the default Customizr header and footer. I wanted to use the full-width template with CustomizR theme as the base template, copy it and rename it “custom sales page”.

I read https://doc.presscustomizr.com/customizr/creating-child-theme-customizr/ and https://www.ads-software.com/support/topic/custom-page-templates-11 but I’m thinking that the easiest way would be to create the sales page from the full-width template and not the index.php. Is this correct?

2. Also, will the sales page be mobile friendly?

Awaiting a reply