E-Commerce Printing Website Build

I run a printing business and need an online storefront that lets visitors browse my full range of products in an organized, visually appealing catalog. The first milestone is a clean, responsive e-commerce website where every product—business cards, flyers, large-format prints, and more—can be grouped by category with detailed specs, pricing tiers, and high-resolution images. My immediate priority is the product catalog itself; however, I would like the build structured on a scalable e-commerce platform so that adding a shopping cart and payment gateway later will be straightforward. If you already work comfortably with Shopify, WooCommerce, or Magento, let me know which you recommend and why—it’s open at this stage. Key deliverables: • Fully functional product catalog with easy back-end management (add / edit / hide items, upload artwork templates, set quantity pricing). • Mobile-first design that loads quickly and looks consistent across modern browsers. • Basic SEO setup and on-page optimization so customers can find each product page. • Clear instructions or brief training video showing how I update products myself. Once the catalog is live and stable, we can discuss integrating checkout and payments as a follow-up phase.