Anyone knows a Minimized template

Hellow everyone,

We have to use wordpress in order to display our reservation system in our Joomla website.

Currently i have removed chunks of coding from the Twenty Ten theme to remove all other items. trail and error.
This seems to work but the reservation system does not show everything and CSS seems off.

What i need is an Theme or Template which suits this requirements:
Display the Sidebar over the entire width of the page.
Display ONLY the sidebar widget and reservation system.
So No Menu, Title, content, footer, feedback or whatever.

This is our current page
http://wp.navenkove.com/

I would be thankfull for any tips for a theme that can help us.