Filemaker Development of Mobile Collecting Platform

Objetctive: we have 4 collectors, we want to give them 4 iphones with filemaker go so they can : 1. in office within wifi LAN, import today route for collection, with GPS dirección. 2. Be able to get the best route with the different GPS addresses, calculate estimated time and best route 3. if they want to get the best way for only one address be able to do it. 4. make the collection and print with zebra printer (or any other printer ) 5. get back to office within wifi LAN and import all the collection made. Please let us know the possible time invested and the possible amount that will be charged. The connection is to a filemaker server database. Iphones we are using are iphone 5s