Build me a geospatial interface and database with mongodb

Using google maps as a reference, i want to be able put pin on a few locations. When i click on the pin, i should be able to: 1. Upload a few images 2. add reviews and comments 3. Edit my post when i hover on the pin, i should be able to see: 1. the favorite picture and the overall ratings in form of popup Admins: 1. able to add more pins/ locations or change the pins 2. view the collection of pictures uploaded by multiple users pls pm me ur price, very urgent on this project!