Full creation of website

I am looking for the answer to the following questions:

How do I create a website similar to [url removed, login to view], where buyers and sellers can bid on projects, but I get a percentage of the sales?

How, on the same website, do I allow people to post items for sale?

What legal issues, if any, are there to deal with?

How much will this whole thing cost?

## Deliverables

n/a

## Platform

n/a

PHP

Projekt-id: #3139648

About the project