Looking for someone with fairly extensive Magento SEO experience to help audit an existing (fairly new) website. Currently our main problem is a large number of 404 errors in WMT due to a layered navigation change we had to make, but we are experiencing a drop in google shopping traffic which I believe is tied to our quality scores going down. Would like someone with experience in Magento and Adwords to help fix the issue. Willing to pay an hourly or flat rate, need to get this fixed so we are ready to pay what is needed to make that happen. Thanks!