Marketplace mobile website

Developing and designing a mobile webpage where clients can advertise products for sale. They simply go to a mobile / webpage and follow these steps: They can choose between : New user of Existing user. 1. Enter mobile number 2. Enter password 2. Select of Snap a picture 3. Select Category 4. Short description (max. 200 characters) 5. Select currency 6. Upload The ad of the product shoud contain : Phonenumber, Picture, Description and Pricing. Manage listings by user can be done by login with mobile number and password. This website should have a simple administration panel where we can manage listings no approval needed. This website should be designed and build custom.. no heavy cms or engines.