The other option is to go to a "real" parts house like a NAPA and ask to see the power steering hose book. There is usually a photo section that will show you the different pressure hoses. It might take a bit of hunting to find one that is correct but you should be able to come up with one that comes close.
I do have to agree that a custom hose will work just fine and the chances of failure are slim.
most pressure hoses just have a slow seepage if they leak unless they have something rub them or get against something hot.
Now I need to go back and see what your are using for a pump and steering box.