After reviewing your attached PDF, I can say that, our development team can make your proposal successful , EASILY. If you want payment integration, which is not included in flowchart, it will take more days, after project completion. without that, in 20 days, we will give you a cool outstanding website. First, we will make design. You will confirm it. Then we will start coding. We will give you a link for update. All the work will be done on our live portal. Through that link, you can see update anytime.
Thanks.