1) & 2) Auto complete is not a default feature of the theme, but is planned for a future release. Currently though it would require customization on your part if you wish to implement it.
3) You have an option in the Vantage admin dashboard to charge users to feature their listing, as well as another option to feature the listing at the top of the category.
4) You can create multiple plans, with featured listings options as seen on the
Vantage admin demo, however there are not different levels of featured listings as you describe.
5) At this time the theme allows for selection of a single location from the map, however you could also use the custom forms functionality to allow fields for additional location information if you wanted to.
6) This would require customization of the theme as it is not an available option.
7) There is a
.csv importer built into Vantage, however you may wish to note the Geocode limits as explained in
this blog post and accompanying links. Thanks.