Open Cart customisation(repost)

I need a few customisations to my website, which uses Opencart. You NEED to have experience in using Opencart if you are to work on this project. Mainly the shopping cart and currency module in the header. As you can see.. the shopping cart on the right hand side needs to go in the header. It needs to look something like the one on this website >? <[login to view URL]>? . The currency has been changed from the original drop-down list, to buttons, but is still a module on the right hand side. This needs moving to the top of the page on the right in a little box saying "currency: £ $ ?'?" Best sellers will be removed or moved over to the left, and the main middle box extended to fill the gap of the right hand column. Many thanks :-)