Emulate a site with full page width

Hi, I would like to emulate the site: justicebuys .com as I like the simple full width design.

But I am struggling to get a true full width page, even on themes that say they do full width, there is still a sidebar lingering. And I also need the images to be links to external sites and not link to a larger version of the pic, as is the norm.

I am also struggling to get 4 images going across the whole page. I tried using columns, but could only get a max of 3. And in tables I could not add images in some themes. and could not add external links to the images in other themes.

Any suggestions please? Thank you