Develop a Magento Community Extension(Special Requirement)

A Magento Community 1.7+ compatible extension is to be developed to allow product authors to review sales and submit products on a magento site. Complete list of features: 1. A Separate Role named 'Author' will be created. The users with this role can login to Magento Dashboard. 2. Authors can Add Products and Edit only those Products added by them. 3. They must not be able to view/edit other products on their dashboard. 4. Authors can also view the number of sales of the products submitted by them. Additionally, another set of features is required. 1. An extension is to be developed wherein we will set a commission chart for the product authors. 2. The commission is set according to the volume of sales of each product submitted by them. 3. A page in dashboard is to be created wherein they can view their sales reports. They can also see how much commission they have earned. 4. Another option in their dashboard will allow them to manage their Author profile. I will give you a set of fields that has to be there in their profile. Before you bid 1. You must have a strong experience of developing magento extensions. 2. The extension that you create must be easily upgradable to future versions of magento. 3. I want the extension ready within 15 days after you are awarded the project. 4. The site on which this is to be installed is a live website. So before we install it there, I want you to showcase its complete working on your own test magento installation. 5. Bid only if you will yourself develop the extension. No mediators please. More chances of selection 1. A Good portfolio in Magento 2. Ease of conversation 3. Mostly Available online 4. Reasonable Pricing. You can place your bid and ask for any clarifications if required.