Hello,
The idea of adding the widgets on other pages are pretty awesome, but you can customize the theme yourself by creating a child theme and adding widget areas on the inner pages.
Just register a widget area on your child theme. Here is a resource to help you with it. https://codex.wordpress.org/Widgetizing_Themes#How_to_Register_a_Widget_Area
Now that you have registered a widget area you can display the widget are on the inner page and add different widgets on the inner pages.
Here is a resource to help you with it.
https://codex.wordpress.org/Widgetizing_Themes#How_to_display_new_Widget_Areas
You can also consider hiring a developer if you find it hard to code a widget area on the theme.
You can send us a contact email with your requirement and estimated budget if you want us to do the customization.
http://axlethemes.com/contact/
Hope it helps.
Regards.