adjust alignment of menu in left sidebar in Twenty Fourteen

SO, first off: I’m a bit of a nube when it comes to modifying wordpress. I can find my way around the code, just don’t really know what to edit to get the changes I want.

Here’s what I need to do:

Currently, the menu is set to be in the Primary (Left) sidebar.

1. I would like it to sit level with the content side bar instead of being some px above it.
2. I’d like to be able to center/or align the widgets under it in some way so that they have the same px of margin from the content as the menu does.

I’d also like to:
Remove the menu from the top entirely (just having one in the sidebar.)

And…unrelated to menus, but while I’m at it: one can remove the tags from appearing below the post title, right?