Android app for fruits and vegetables delivery

Hi Everybody !! I need a budget for the following requirement  (Cost and Time). Android App Design and Development 1.       The plattform is for fruits a vegetables delivery activity . 2.       Users must enter through social network accounts and may have 2 roles (Ask for a Delivery Service = Customer , or be a Delivery Driver ) 3.       Both Users must qualify each other / write comments after every transaction. 4.       The Customer User requests a service and complete (Point of pick up, Point of delivery, Day / time window, Text box and may attach  attach a picture of the product, etc.) 5.       The Proposal will be sent to all Delivery Drivers who are active at that moment and are able to go to the pick up and delivery point. To do this, they must previously set preferencial points on the map , whether fixed or variable (current position) and range radios for localization matters. 6.       Those delivery users that satisfy: (are able to go to the place, are able to arrive at a time, are near to pick up point, have good qualifications, etc.) will see a Google Map Pic with the Path from A to B and the details of what the client needs to buy and deliver  and if they agree with the conditions they can offer to do the delivery service. 7.        The list of these delivey users will be sent to the customer via PUSH ALERTS. 8.       The Customer will Choose who he wants to operate with. 9.       If they want to Start the delivery: The users (Client and Delivery) must pay for each transaction through through means such as debit card, credit card or some other standard payment system. 10.   We also need to create a web to moderate the users.