E-commerce Website for Plant Decor Brand

I am launching a premium online planter and home décor brand called Bhumi & Bloom, based in Bangalore, India. I am looking for an experienced e-commerce developer who can recommend the most suitable platform (Shopify, WooCommerce, PrestaShop, or any other platform) based on my business needs and then design and set up the complete website.

The website should have a premium, modern, and minimal look similar to high-end lifestyle and plant brands. It should be mobile-friendly, fast, SEO-optimized, and easy for me to manage without technical knowledge.

The scope of work includes:

Recommending the best e-commerce platform with reasons.
Complete website design and development.
Product catalogue setup with categories and filters.
Shopping cart and secure payment gateway integration.
Shipping integration for India.
GST-compliant invoice setup.
Customer login, wishlist, and order tracking.
Contact page, About Us, FAQs, Privacy Policy, Terms & Conditions, and Return Policy pages.
WhatsApp integration.
Basic SEO setup.
Speed optimization.
Training on how to add products and manage the website after handover.

Please share:

Which platform you recommend and why.
Examples of similar e-commerce websites you have built.
Estimated cost and timeline.
Whether you provide post-launch support.

My goal is to build a professional, scalable online store that can grow with my business and support future expansion.