vacuum lines/cleaning up the bay

I know TMOSS has diagrams on his site, but I guess I'm dumb.

I have removed A/C and smog pump. I pulled the A/C line off the vacuum tree. Everything on that line can be removed, correct? Can I simply snip off the line going through the evaporator gasket at the firewall?

Next set of questions need the following pics:

pic.php


pic.php


For pic 1 - There are two lines on one side (black and gray) and four on the other (red, green, black, gray). To me, it looks like from the side with four, only red and green are being used. So that leads me to pic 2 - what do I need and what don't I need? And what is all this stuff called so I don't continue to sound like a moron.

Thanks in advance. I wouldn't have a chance in heck of taking on this engine bay project if it wasnt for stangnet!