Not sure how to handle this request

Hi, I am still kind of new to wordpress. I was asked by a client to design a web site in wordpress, heres the catch. Even though they DO NOT want an ecommerce web site, they do want to have a page where they can sell about 10 items, (NOT THROUGH PAYPAL). They want to run it through authorize.net. Is there such a template, or widget, so that I can build an informational web site with one page of selling product?

Thanks much for the help!

Lee Levy