Design +30 Shopify e-commerce websites

I am looking for a Shopify designer to build approximately +30 niche e-commerce stores for different niches. All stores will have a similar structure, with only the niche, branding, colors, banners, and collection images changing. Your role is focused on theme design only. You will NOT be responsible for anything else, adding products, product descriptions, shipping settings, payment setup, taxes, policies, or other backend configurations. Your responsibilities include: Designing the homepage Creating the banners Selecting colors, fonts, and branding elements collection images Setting up a professional product page template (reused across stores) Making the store design look modern These are niche e-commerce stores (not one-product stores and not branded stores). You may use AI tools, templates, themes, or any efficient workflow to build stores quickly. The goal is to create a scalable process for launching multiple nice stores with consistent quality. Timeline: 1–3 days per store Budget: $20–$40 per stor If interested, please send: Your price per store Examples of Shopify stores you've designed The workflow and tools you would use to efficiently handle 30 stores We are looking for a long-term partner for this project.