Service E-commerce Website Build

I need a clean, conversion-focused e-commerce site where clients can browse, purchase, and schedule my professional services online. The store will sell services only—no physical or digital products—so every page, checkout flow, and back-end process must be tailored to bookings and service delivery rather than shipping.

I have not settled on a specific platform yet. I’m open to Shopify, WooCommerce, Magento, or any other modern stack you can justify for this use-case. What matters most is reliability, easy self-management once the site is live, and the ability to integrate secure payments, automated invoicing, and calendar or booking functionality.

Key deliverables:
• Fully designed and developed service-based storefront, mobile-responsive and SEO-ready.
• Streamlined checkout that captures client details, applies any promotional codes, and issues automated confirmations.
• Administrator dashboard where I can add / edit services, pricing, and availability without touching code.
• Payment gateway integration (Stripe or PayPal at minimum) with SSL set up.
• Basic on-page SEO and speed optimisation so the site loads fast and ranks cleanly.
• A brief hand-off guide or video walkthrough so I can manage updates confidently.

I’m looking to start quickly and would love to see examples of previous service-centric e-commerce builds you’ve completed.