WordPress Site Creation with Adding Products

WordPress is already up and running on my domain in place; what I now need is help adding the proper new theme and products. I have around 20 pcs physical products, complete with titles, descriptions, prices and images. Your task is to enter each item into products showcase, double-check that the data is clean and consistent, assign the right categories or tags, set featured images and gallery shots, and make sure each product displays perfectly on both desktop and mobile.

For the products, I will hand over a PDF and sample website with exact same products. Site will not have any shoping features. Will only be a website which displays products and their technical features.