Canvas Printing Website

I have a canvas printing company. I need a website with features that will allow customers to upload their own images, choose size of canvas and other options, then pay and complete the order all in one system. The website should be similar to this site: [login to view URL] The price will depend on the Width and Height which customers will choose. There will be a few standard sizes, and also an option for the customer to choose random custom sizes. Attached is our standard sizes and price list. Note that the sizes (W x H) are in inches and currency in Nigerian Naira. The programm for the cutom sizes and prices should count like this: Gallery Wrap (W x H =100) to (W x H = 500) x N40 501 to 1000 (x 38) 1001 - 1500 (x 35) 1501 - 2500 (x 30) 2501 - 5000 (x 25) 5001 - 10000 (x 23) more than 10001 (x 20) Floating Frame 100 - 500 (x 60) 501 - 1000 (x 55) 1001 - 1500 (x 50) 1501 - 2500 (x 45) 2501 - 5000 (x 40) 5001 - 10000 (x 35) > 10001 (x 30)