A list of changes we want to make to our web site

We have a list of relatively small changes we want to make to our Word press site. We would like to work on a time and materials basis, rather than fixed price. Here is the site we would like to work on:
http://o8b.2db.myftpupload.com/

This is our staging site. We are going to roll out this new look. The current production site is:
www.visiun.com

Some of the initial changes we want to make:
* change home page to use an image carousel instead of a single image
* add images to the news posts
* add the tag line "The leader in laboratory analytics" to the home page
* while the current design is responsive. Is there a way to make use of the white pace on the sides when viewed with a large monitor?


But obviously we would want to make all the changes to staging and when it is ready we will promote that to production.