I purchased set of agiles multiseller module with other related modules which I need according to my need. They are comparatively economical and work well in environment of Prestashop 1.6.0.x. Rest as you wish.
Advance Marketplace Module from webkul is a worst module, I have ever seen. That is not advance module but an incomplete module. When you ask for your problems, they ask for more and more money. Please select some other choice.