Digital Products E-Commerce Webpage

I need a clean, conversion-focused e-commerce webpage built specifically for selling digital products. The site has to guide visitors smoothly from product discovery through secure checkout to instant download delivery, all on a single, beautifully branded platform.

Core requirements
• Responsive design that looks sharp on mobile and desktop
• Secure payment gateway (Stripe or PayPal preferred) with automated download links issued on successful payment
• Dashboard where I can add new digital items, set prices, view orders, and resend download links if needed
• Basic licence or terms pop-up before purchase to protect the files
• Email capture and integrated order confirmation emails
• SEO-friendly structure and fast load times

I’m open to the framework or CMS you recommend—WordPress + WooCommerce, Shopify Digital Downloads, or a custom build—as long as it stays lightweight and easy for me to maintain.

When you reply, please let me know:
1. Which platform you suggest and why
2. A recent project URL that shows similar digital-only checkout flow
3. How long you’ll need from kickoff to launch, including a short testing window

Everything should be ready for me to start uploading my first batch of files the moment we go live.