Implement shopping cart by ellenpayton

Need to have someone implement google one page checkout on my website. I want it to look exactly like this: http://www.7witchescoven.com/store/pc/The-Custom-Love-Spell-3p125.htm Would also like to see a real world working example of work you have done for another client... (Budget: $250-$750 USD, Jobs: PHP, Software Architecture)
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