Unique sidebars for pages in twenty eleven

Hello!!!

I’d like to add individual sidebars for each indivdual page. I like the main/blog page to use the standard widget-filled sidebar, however I would like more than one page to have its own sidebar:

https://comedysociety.co.za/blog/cs-kings/bethuel-giwu/

https://comedysociety.co.za/blog/cs-kings/kgomotso-the-hitman/

I can create the content manually without widgets, but where do I put it so that each page has its own unqiue sidebar?

Also, How can I push the content,sidebar and navigation down so they don’t overlap with the logo? The logo needs to be that large.

Thank you for your help

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