ACF Address Autosuggest and Autocomplete is a simple addition to Advanced Custom Fields. It add capability to turn any field into Address Auto suggestion and Auto Completion Field. It allow you restricts Auto Suggest results to specific countries. It also allow you to restrict the results by type i.e Address, Geocodes or Businesses.
It uses Google Places API to suggest addresses to your users while they type.
Need it customised further. Just drop an email throught the support page.