WordPress E-Commerce Site Build

I’m ready to launch an online store and need a WordPress specialist to turn the idea into a fully functional e-commerce site. The build should be clean, responsive, and easy for me to manage once we go live. At minimum, the site must include:

• Product catalog
• Shopping cart
• Payment gateway integration

I haven’t settled on a theme yet, so I’m open to your recommendations—whether that’s configuring a proven premium theme or developing a lightweight custom layout from scratch. I value clear code, fast load times, and simple backend workflows.

Please outline your proposed approach, note any similar stores you’ve built, and let me know the estimated timeframe to reach launch.