You are right. Any updates on site will require you to think about SEO so there is no lost traffic here is a QA wordpress you can use http://www.designwall.com/wordpress/plugins/dw-question-answer/ Also this is good seo plugin as well https://yoast.com/wordpress/plugins/seo/
Let me google that for you http://www.tampabaycopack.com/company.html http://www.manta.com/c/mm2w4l8/the-american-bottling-company http://www.manta.com/c/mthcq94/southeast-atlantic-beverage I'm sure the management and salespeople of these companies can give you all the information about regula...
Have you looked for a contract bottler in your area? Email me at jay@ludollc.com.