Duplicate Content Issues - Should I build a new site?

[TheYeti]

I'm currently working on a site which is built using Zen Cart. The client also has another version which has the same products on it. The product descriptions and the vast majority of the text has been re-written. I've used the duplicate content tool and these are the results: HTML fingerprint: 0000a7ee1f07a131 0000a7ec1f07a931 92.31% Total HTML similarity: 76.33% Standard text similarity: 66.72% Smart text similarity: 45.81% Total text similarity 56.27% I considered using a different eCommerce system like Magento or Volusion. So I had a look at a few templates, chose one and then used the tool again and got the following: HTML fingerprint: 0000a7e41b012111 0000a7ec1f07a931 72.00% Total HTML similarity: 64.65% Standard text similarity: 11.69% Smart text similarity: 17.90% Total text similarity 14.80% Do you think its worth doing this? thanks Dan

[RankSurge]

That's a tough question to answer. If the new site can be built using seo best practices, it might be best for the client in the long run. In the short term it might be a bit of a mess to clean up from all the duplicate content, indexing and url mapping that would have to be completed, but that would be serving the client's best interests.