Sleek Preowned Phone Marketplace

I'm looking for a modern and sleek one-page website where users can sell preowned phones. The site needs to integrate APIs for KYC verification, using DIGILOCKER.

Key requirements:
- User-friendly interface for sellers
- Form to collect:
- Phone model and condition
- Price and warranty status
- Original purchase details
- KYC integration via DIGILOCKER

Ideal skills and experience:
- Web development expertise
- Experience with API integration
- Familiarity with KYC processes and DIGILOCKER