Editing website on wordpress platform

I need some changes to an existing website. Hello, I need some changes to an existing website. Hello, I have website that sells products by vendors. I need to make every page of similar products of vendors which contain more than one color or name looks like this page : [login to view URL] Also, can i add more than one vendor In same page so customer can choose from a list of same product without showing vendors’ names . Admin can add commission for every vendor’s sale and can see all the products that vendors selling . But the vendors can’t see each other products, just every single vendors can see their products ( how many colors remaining on their list and how many pending ) . And also, I want the vendors and admin know how many products they sell and how many left The following points were done just to clarify: The vendors can’t add any product just the admin . adding products just by admin and anyone signup to website should be a [login to view URL] any customer want to be ( vendor ) they can upgrade by admin. Note: the website in wordpress. Please do not email me if you do not understand deal with this issues. Thank you