You can now buy Divi child themes, layouts, and plugins in the official Divi marketplace run by Elegant Themes.
A Divi Theme website example for charity website @ Dollar Fund
A site collecting $1 from 1,000,000 donors to give away to worthy casues every month.
This Divi Theme website uses the following Wordpress plugins;
Give Form Field Manager
Gravitydivi Forms Customizer Module
Automatic Responsive Tables
Surbma Divi Extras
Google Analytics For Wordpress
Give Fee Recovery