Shopify E-commerce Website Required

I'm looking for an experienced Shopify developer/designer to provide a quotation for building a modern e-commerce website for one of my clients.

The business sells clothing and trainers and currently has approximately 40 products. The website will be built on Shopify, and it's important that the client can easily manage the store themselves after launch, including adding new products, updating prices, managing stock and creating collections.

Project Requirements
Custom Shopify website design (not just installing a theme)
Modern, premium look and feel
Mobile responsive
Homepage design
Collection pages (e.g. Trainers, Clothing, New Arrivals)
Product pages
Search and filtering functionality
Secure Shopify checkout
Payment gateway integration
Shipping configuration
Contact page
About page
Basic SEO setup
Speed optimisation
Social media integration
Product upload (approximately 40 products)
Easy-to-use Shopify backend with training or guidance on managing products
Design Inspiration

I'd like a clean, modern streetwear style similar to the following websites (these are for inspiration only I'm looking for an original design, not a copy):

https://www.dripuniqueuk.com/
https://olex.store/
What I'm Looking For

Please provide:

Examples of Shopify websites you have designed and developed (preferably clothing, footwear or fashion brands)
Your estimated cost
Estimated timescale
What's included in your quote
Whether the design will be bespoke or based on a Shopify theme
Details of any ongoing support packages you offer

I'm looking for someone with strong Shopify experience and a portfolio that demonstrates modern, high-converting e-commerce websites.

Please only apply if you can provide examples of previous Shopify projects.