You'll have your work cut out for you SEO wise. My company puts a lot of business through Amazon. They usualy outrank me for every product, with the exception of newly released products. I get a few weeks grace at number 1 then generally slide down as more major shop sites take our product.
I posted in another thread that I was competing, but shortly after the page started to slide in the serps and i was the original author.
Our products have only been on amazon for just over a month and already they blasted apart the figures that were being generated by my site.
With that being said I wouldnt want to loose the site, its never a bad thing to have. but it cant compete with amazon.
To be honest ive inherited a poorly built and badly optimized site but im starting to believe, that it couldnt match amazons sales. even if it was rebuilt and optimzed.