Convert our current fixed, 3 column 1-2-3 CSS template into fixed width SEO 2-1-3 template.

We are looking for an already highly proficient CSS writer to convert our current website 3 column 1-2-3 CSS stylesheet templates into fixed width, SEO friendly 2-1-3 column ordering - whilst maintaining compatibility in major browsers. Any solution provided will be testing via <[login to view URL]> to ensure compatibility with the major browsers. Our website is written in Classic ASP, HTML and also utilises JavaScript and JQuery. <[login to view URL]> Our website currently fixed width, 1-2-3 column ordering. Needs our current CSS converting to allow fixed width, SEO friendly 2-1-3 column ordering. Your solution must have no CSS hacks,be SEO friendly, have no Images or JavaScript - be Cross-browser & windows/Android/iPhone/ipad compatible. I have found suggestions on how to do this, but I do not have the necessary skills to do the conversion myself. e.g. <[login to view URL]> & <[login to view URL]> Please note, our homepage on <[login to view URL]> is a unique, single styled page. Your new ccs stylesheet should have the same id's/classes as our current stylesheet to save me having to re-code my asp classic aps pages). <[login to view URL]> - e.g of some but not all of our current ID/Classes used. <div id="container">, <div id="Left-hand-column">, <div id="WeddingGeneral-widget" class="widget rounded-widget"> etc etc I will create a test page, with a link rel="stylesheet" that will point to where you have placed your css, called 213SEO.css. Alternatively, you can send me the [login to view URL], but this will slow testing. We require an estimate of the number of hours you think this project would take you to complete.