Build a website that look professional

My client is a NGO entity they appoint me to build website for them. In that web site i need good simple design outlook easy to navigate from mobile [login to view URL] have back end panel to create fundraising article. Each article have sharing option . User can register them then share the article so we need to track who is share the most. User also can donate also need to track. Publish option so we declare on home page who is top downers top sharer. Also need to integrate payment getaway as razorpay pay and PayPal. Some like As a example you can follow [login to view URL] Don't bid unnecessary. Don't bid if you not good enough for development. Read description before bid. Bid directly 3rd party solution away from. Site must be look probational. Payment done after work done and test. No partial payment request accepted. in the min time in work if you can't able to work more or as we need or work quality not good leave the project without any argument also don't clam any money. More we can discus on chat. Don't over bid.