Views - Date Filtering (Panels?)
Here's what I would do.

First I'd enable the CTools Page Manager and Views content panes and create a page (admin/structure/pages) for that display that has arguments in it's path.

Then I'd create three views with display type "content pane": one that lists nodes based on a contextual filter (A), one that shows only one node (B) and one that lists dates (C).

Then I'd create the column layout in the page's content and would provide the arguments with Page Manager.

Here's a really nice tutorial from NodeOne that addresses most of the tricky parts here:
http://dev.nodeone.se/en/learn-page-manager-part-5-views-content-panes-basics