Vantage has a built in importing tool which allows you to import data in .csv format, so as long as you complete the fields required in the example file (provided with the theme), then you can import existing data from another site. You can view the available fields for listings in the
Vantage Demo.
This reply also applies to your question @wjgoodman: Our themes are not encrypted, so if you wish to remove or add features that you see on the demo, you are free to do so by way of
customization of the theme on your part. We recommend the use of child themes when considering making such changes as this will prevent you losing all of your modifications in the process of an upgrade.
Yes, Vantage can be installed in a subdirectory of your domain if you preferred to use another theme as your main homepage.