Every version includes a number of static blocks. I’m not sure if you need all of theme (we have 80+ versions) because you will get a lot of content. Anyway if you want to import static blocks from other versions go to the Downloads page https://www.8theme.com/downloads and download XStore XML files archive. Extract the archive and you’ll find folders with versions. Every folder includes the static-block.xml file. You can import it via Tools > Import > WordPress.
Special offer element is the WPBakery element and you can use it in the content if you need, here is an example where it was used http://prntscr.com/qru92c
One standard license is valid only for 1 project. Running multiple projects on a single license is a copyright violation.