544765 Wordpress Theme amendments

I am building a large wordpress community based website and need someone to work on the theming for me. I have a basic template installed but need it to be tweaked, some basics tweaks like just uniform the sidebar widths. But also add widgets to be able to display content from other areas of the site. There is also some colour changes that will need implementing. I have put together drawings of how I see the site looking and will be working closely with the person who is awarded the project.