QUICK CHANGES TO CODEIGNITER WEBSITE

Changes needed to a codeigniter website. I'm outsourcing this project because i am way too busy and i'd rather get someone who is very familiar with codeigniter framework. Most of these are extremely simple modifications and I'm on a low budget so please take this in consideration when bidding. Please only bid if you are familiar with CODE IGNITER. I will send you the source files and you are expected to do the changes on your own server and later replicate the changes on my server. A list of all files that were changed are also necessary. Here are the demands: 1 - Increasing the size of the images on a lightbox. they will no longer be the same size of images on the checkout page. 2 - On the purchase preview page, install image preview option with lightbox "+ zoom" 3 - Change layout on page to 3 columns instead of what it is currently (4 columns) 4 - Enter artist name in all the works 5 - Ability to edit the order of the works in SHOP / DIGITAL / ARTISTS - Currently Only Exposure lets you edit order 6 - When a ITEM runs out of STOCK, the system automatically generates a version SOLD. We need to generate an option that will show a message ON BACKORDER, wich is should be "UNCLICKABLE". Maybe If we change the stock to -1 ? 7 - On the registration form, include MOBILE NUMBER 8 - We need to be able to insert video (embeded file or youtube / vimeo) inside the EXPOSURE section