Add purchasing and deposit abilities to my website.

Industry: Food and Beverage
Ideas for the visual style: A button for customers to click on
Website url: www.paulassweettreats.com
Urls to draw inspiration from: http://bakeshop.carlosbakery.com/banana-nut-pound-cake-1.html
Extra notes: I want my customers to be able to purchase my bakery items on my website and pay a 50% deposit.
I also want them to be able to input when and where they want their delivery order.
It would be great if you could add a order now button to each item in my treats menu.

My website is www.paulassweettreats.com
Please take a look at my website and give me a proposal.

I do not like to Skype, please don't ask.
I like my current website and I am not interested in paying for a new one to be created.