Full-Feature Electronics E-Commerce Website Build

I want to launch an online store for electronics that offers the same depth of functionality you see on https://www.test-meter.co.uk/ in wordpress. The goal is to mirror its smooth catalogue browsing, detailed product pages, and friction-free buying experience, but with my own branding and product line.

Core requirements
• Products: exclusively electronics, organised in clear categories with powerful search and filtering.
• Payments: checkout must accept Credit/Debit Cards out of the box (Stripe, Square or a similar PCI-compliant gateway is fine).
• User roles: three tiers—Customer accounts (registration, order history, saved addresses), Admin accounts (full site and order management) and Vendor accounts (add/edit products, manage stock, view their own sales). Role-based dashboards should keep permissions cleanly separated.

Additional expectations
• Responsive design that matches the reference site’s speed and usability on mobile and desktop.
• Secure cart, SSL, GDPR-compliant data handling and automated tax/shipping calculations.
• Easy-to-use CMS so my team can update products and pages without touching code.
• Migration-ready structure for product data (CSV or spreadsheet import).
• Clear, well-commented code and a brief hand-over guide once it’s live.

I’m open to your preferred stack—WooCommerce, Magento, Shopify, or a headless setup—so long as it delivers the same end-to-end polish as the reference site. Please outline your proposed platform, timeline, and any similar electronics stores you’ve built.