Theme with Trial Pack?

Hi DrupalExp,

We have planned to use this theme for our new site in Drupal 7(7.4 or higher version). As we looked out the demo,

We have certain questions,

1. Do you provide full customization support(i.e., i may require to change each of its colors, columns or blocks)?
2. Do this theme provide support for Drupal Forum module & other Contributed modules?
3. What happens when i upgrade drupal versions?

We plan to create a site, which is more or less like https://www.tableau.com/

And you can suggest me any theme which matches my requirement?

Please make sure that you provide trial pack of any of the selected theme.

Regards, Prasanth