I need a coder

I'm an Amazon Affiliate and I have a Wordpress site with hundreds of Amazon products in the "Sports and Outdoor Clothing" niche. I was looking for a piece of code that will watch my Wordpress DB and alert me to a duplicate product being added to it. A simple email alerting me to a " Duplicate has been added" and a product name so I could delete it at any time. Funds prevent me from making this a full blown "Plugin" so all I want is a piece of code that I can add to Wordpress to prevent Google complaining that I have duplicates on the site. It also looks bad to customers if they find two of the same product showing up on the same page.