Build a Website for www.fotoshotz.net

I want to build a website that allows a photographer to take photos of people surfing on waves. from the water, that photographer gives the surfer a plastic business card to have a have a look at the website and decide if they wish to buy photos of them surfing and if they do wish to buy some photos, they pay us and I need a system that would automatically pay the photographer as soon as the payment is fully authorised. .I also need a system that would allow any to photographer to join up to our website and post photos onto site for sale and reset our location menu to include the area they are operating in WORLDWIDE. ( Type of Activity , Country , City , Time (like 10am-12pm etc ) I need a system that will allow a lot of data to be automatically reduced before sending so that it will work on 3rd world internet connections with auto watermarking of the images to prevent theft . ==================================================================================================================== On the customer side I need a website that is easy to navigate to the photos of what they were photographed doing and then have a look at the photos and if they wish to buy, They can pay for them securely and as soon as credit card is authorised images are downloaded instantly to their Email and our facebook page .(yet to be built) Customer also has the opportunity to visit our online store buy picture frames, mugs ,placemats etc with image on them . ,