zorrox
You can override the article layout by copying files in:
root/plugins/system/t4/themes/base/html/com_content/article/
and paste into:
root/templates/ja_stark/html/com_content/article/
and customize the layout as you wish.
With this kind of customization, you should understand the Bootstrap markup and custom style. This task would take time so I recommend you to hire a developer to get it done for you.
Regards