Advice on primary call-to-action vs. inline call-to-action

I am designing an address search, where the results appear below the search box, there are two questions:

  1. Does the box expanding below the search button work or do you think it should end at the width of the search box?

and

  1. The primary call-to-action (CTA) is the button that performs the search, once address appear the primary path is accessed by selecting an address, what restrictions do you think exist on the colour of the button? Should it be the colour of the primary search button or a different colour? Or should it be a button at all?

The example includes a few ideas I've been mulling.

Select Buttons