Landing & Product & checkout Pages for MONO Product Shopify

I am looking for a skilled Shopify developer to create landing, product, and checkout pages for my MONO product. The main goal of these pages is to increase sales.

Dear freelancer read carefully

I have mono product and more accessories for this product called flavors
this is my now product page
https://meeri.uk/products/air-up-bottle
and this is my now landing page
https://meeri.uk/
and this is my now checkout page
https://meeri.uk/checkouts/cn/c1-8c4edec7b839223336b86edacd50a055?ew_m=f

I need 1 landing page which I will do Google ads and Facebook ads on those pages & 1 product page & 1 checkout page, I mean one way to my customer to successful sales and conversion


IMPORTANT NEED ALL FOR FREE APP I MEAN for example

Pagefly APPS FREE 1 product page
GemPages APPS FREE 1 Landing Page Builder
Shogun APPS FREE 1 checkout page