How do I move redstone signals vertically (for a vertical sticky-piston door)? [duplicate]

It's actually pretty simple. Have some screenshots.
This is the Redstone overview: (those are upside-down half slabs)

(also, the Redstone at the back leads to another pressure plate, but that's not important)
This is the door open:

And some more Redstone:

The two pressure plates and their respective Redstone:

If you need some more help contact me by replying!

OK...

Here's what I've got (slightly more compact variation on the way hedgehog1029 has shown, above):

The block beside the arrow has a redstone torch on the side of the next block under it that can't be seen from that angle, exactly as shown in hedgehog1029's third screenshot, above.

I have since moved the redstone torches and wiring around a bit so the door is flush with the wall.

I started with hedgehog1029's design so I had a functional model from which to base my revisions, then tweaked it as I went, and the above is my finished version, and without that help, I think it would have taken me a long time to figure it out, so thanks a ton!

:D