Add a Sidebar to a WordPress Theme

We have a wordpress theme which, while it has a sidebar with a slider, html block and a few subnav elements, it doesn't allow us the ability to change these elements on different pages. For instance, on page 1, we need elements 1,2,3 and 4. On page two we need elements 3 and 2 (in that order). WordPress has the built in widgets section which we'd rather use. Can you replace the sidebar with one that uses Widgets within 6 hours of bid acceptance (we will check you are available before accepting your bid). If you are able to set about 15 pages up correctly in WP if we tell you what elements need to go where then please let us know and bid accordingly. Thank you