Creation of a Multi-Vendor Store on Python + Django

We are looking for a specialist who can create a Multi-Vendor online store, similar to
3dsky.org, cgmood.com or greatcatalog.net. In the future, there will also be a need to develop websites for servicing Pharmacy Networks in one of the Eastern European Union countries, a large Restaurant in the EU or Ukraine and Orphanages in Ukraine, as well as technical support and improvement of these websites - therefore, it is fundamentally important for us to have long-term cooperation with a reliable and responsible performer. Companies considering
  Important conditions.
- Companies considering this project for partial execution for the purpose of partial earnings - do not disturb: we have already parted ways with such a performer from Lviv, and we do not intend to waste money on reservation fees.
- Pay attention to the price! If you are convinced that you will perfectly handle the task, but the pricing is underestimated - know this: under a preliminary agreement with official documentation, we can ensure this, but it will only apply to the performer who will be approved and whose work results will be justified within six months, as the content loading for testing the website's functionality will last no less! 


   The work involves: creating Frontend (according to the provided design, which is in the finalization stage), Back-end on Python + framework Django (the stack can be different if your proposal is reasoned and convincing). In any case, you can assess the complexity of the site by the example of 3dsky.org.

The site will interact with more than hundreds of thousands digital goods/models, with a minimum size of one being 50 mb, at least! Therefore, it is important for the performer to understand such things as API, database, servers for storing this content, implementation of Payment Systems for distributing commercial profits between the platform and the model authors: commission for the online store/platform and royalties for the model owners, the ability to withdraw these funds and other tools for fully implementing the functionality, similar to the functionality implemented on the aforementioned sites 3dsky.org, cgmood.com, greatcatalog.net. Please pay attention to the following clarification: this is about functionality! Advertising sections, informational sections are not taken into account: they will not exist at this stage! These branches will be added later.  
Our marketplace will be simpler than the provided examples, in the sense that unnecessary informational sections will not be included at the initial stage, and the most important functions for us are filtering products by format, brands, style, color, materials and categories, searchability by keywords in the search field, automatic distribution of commission from sold goods for the author and the platform - that is, just like in the provided examples at their core.

 The price may vary, as mentioned above, but at the initial stage, it is important to adhere to the specified cost. We can agree on additional rewards in advance, in case of successful work or testing of the marketplace with a large number of models. In the case of positive commercial dynamics of the project - we will consider the performer as a permanent technical or other type of worker on a permanent basis, provided that this is of interest to the performer and their work is done efficiently. 
P.S. Managers or other individuals without excellent knowledge in this matter are kindly requested not to contact!
Also, please send works that are as similar as possible to the example sites, especially for those who have examples of "parsers" of pages! 

Please consider that by sending your bid for the project - you agree to its cost! Do not indicate placeholder prices, respect our and your time. 
 Thank you for your attention!