BigCommerce Simple Layout / Design Edit

I urgently need to edit several little things in my BigCommerce e-shop layout/design which is ready to launch in a few days times. These include the following: 1. Change of colour scheme - fonts, buttons, icons, update banners etc across the entire shop 2. Update the layout of the product page and reposition the items - e.g. move the 'Add to cart' button to the top, change some text, etc 3. Adjust some spacing in the header 4. Display the name of brands on category pages under the product title 5. Set up the slideshow on homepage 6. Edit some text/links in the header, menu and footer 7. Delete grey border around the product images across the entire shop 8. Edit a search result form - remove the tab content, change formatting to drop down menu (will explain in details) 9. Display 4 products on the category pages per row instead of 5 Here is a list of edits for the 2nd stage which I would like to discuss once the first stage above has been completed successfully. This will be under a new budget: * Remove the quick view from category pages - instead display an alternative image (if available) when the mouse hovers over the default product image * Add image + description on individual brand pages * Create "Refined search menu" on the left of category pages * Edit the design of e-gift vouchers templates There will be more upgrades in the future so it would be great to get someone skillfull and reliable who could overlook all stages of this development.