Integrate one wordpress theme, into another wordpress theme

Hello, My wordpress theme is Avada, which is here: [login to view URL] But I want to add this theme into my design as a new section: [login to view URL] Basically the "Properties" and "Agents" section of Freehold, will be added to my Avada theme design. So when they go to properties or Agents, I need everything from between under the blue header, to the above the footer displayed in my current Avada theme. Using the Avada theme demo, I've included an screen picture of what I mean. Let me know if you have any questions. Thank you.