A Master app developer to create an uber type app

We need an app created that is similar to uber but for tow trucks to dispatch. The app would need to have a backend for the tow truck drivers and a front end for people to call for dispatch. the app would track drivers locations and ETAs. It would also collect payments from the end user. Let me know if you have additional questions. Please include the time to complete the job as well as your hourly rate. This is an ongoing project as we will be adding new cities in US. You must be able to create a cross platform version