Power steering hose leak?

I got a bad leak in 1 of my power steering hoses, I think it's the return line. It's the one with the foil(heat shield) around it where it runs across the frame. The thing I'm trying to figure out is which line it is on the steering column. I don't want to unhook the wrong 1 and possibly dammaging another hose.
The way it looks it's going to be hard to get at.
Any special tools I need for this?
I have some crowfoot wrenches if needed & plenty of other tools including a small hack saw. Lol
any idea where I can get a diagram of how the line are ran?

any help with this is much appreciated.
thanks pete