build a php website (social, ecommerce, having all functions as in description) for me... (new freelancers are highly welcomed)

build a php website for me, having all functions like member system, add friend, block user, message system and in the same website there will also be products so it will also be e-commerce (including payment gateway, cart functionality), i need best design also send me your previous projects so that i can have an idea about your work, also if you haven't worked on this type of project but sure that you can do this then just make me believe about quality of your work. I need highly experienced web developer, it will also include designing logo, so give your best, further project details will be sent to my chosen freelancers, important thing what you need to know is that it is not necessary for me to select only one freelancer of you, in fact i can select as many as i need, my one project similar was already completed by an excellent freelancer, i would also send a request to him to bid on this project, but also i need someone else also because i need many different minds and creativity for this project... So show me up if you can defeat that freelancer... Best wishes... My maximum budget is $50000, so be ready for this project, i am not posting it as contest because i don't want to disclose it in front of everyone...