Shopify AI T-Shirt Store Build

I need a complete Shopify store that lets customers create, purchase, and track custom-printed T-shirts. The key is an AI module—when a shopper enters a prompt or uploads inspiration, the model should instantly generate a high-resolution design preview on a shirt mock-up. Once the order is placed, I must be able to download that print-ready file for production.

Core requirements
• Shopify as the e-commerce backbone so we can rely on its hosting, apps, and admin.
• Built-in user accounts so shoppers can save designs and view order history.
• Product reviews and a wishlist to improve engagement and repeat purchases.
• Checkout powered primarily by Stripe; Razorpay can be offered as an additional option for Indian cards and UPI.
• A clean, mobile-first theme that you customise to match our brand, with speed and accessibility in mind.
• End-to-end flow: prompt ➜ AI design ➜ mock-up preview ➜ cart ➜ payment ➜ confirmation email ➜ admin download link for the print file.

AI integration
You may plug in an existing generative image model (DALL-E, Stable Diffusion, or similar) or connect to an API you recommend, as long as it returns 300-DPI artwork sized for DTG printing. I’ll supply the API key or cover any licence fees; you handle the front-end prompt form, serverless function (or app) that calls the model, and the overlay onto the shirt mock-up.

Acceptance criteria
1. Live Shopify store on my domain with SSL and basic SEO meta tags.
2. AI generator produces print-ready PNG (minimum 4500×5400 px, transparent background) within 15 seconds.
3. No checkout blockers: test payments succeed with Stripe and Razorpay sandbox modes.
4. User can log in, add to wishlist, leave a review, and reorder a past design.
5. I receive clear documentation: theme customisations, AI code repo, and a short video walkthrough.

If this sounds like a build you can deliver, tell me which AI stack you’d use and how long you need.