WPBakery, Brooklyn Theme Experienced, Need Redesigned Shopping Cart and Checkout Page, Few other elements UI/UX

Found a shopping cart and a checkout page that I really like. I want to know whether or not someone can update my WP site, built with a WPBakery Brooklyn Theme to look like this site.

Shopping Cart and Checkout Page Example- Helixsleep.com (navigate by adding a mattress to cart etc.)
Existing Site