In regards to Dokan Plugin I understand it uses woocommerce and provides a marketplace environment. If I understand this correctly clients technically don't get their own private store rather are able to post products to the marketplace right?
If so, any idea how to incorporate a e-commerce solutions reselling the dashboard interface as part of WP Multisite Package, something with some nice frontend integration….
Firstly, Dokan is not a plugin. Its a theme, app theme.
Clients actually gets their store, not private though. I you register as a seller and you've your own store in that site (example.com/store/STORE_NAME). They don't need to go to the admin panel and they can manage everything, including their product in their own dashboard in frontend.
I am not sure where you are going with the last para.