I tried finding my post from google, but no luck. Sorry, I wasn't on the correct PC yesterday. Going to my local folder info to search w/ the exact title, I found it
www.peachparts.com/shopforum/diesel-discussion/349815-power-steering-hose-replacement-w123.html
In that post, I give PN's, both what I used and how I might do it again. No leaks from the blue steel wire hose I used in the 2+ years since. I was afraid the weave would pick up gunk and look bad, but still looks new. Oil doesn't seem to stick to the polyester fabric. I have hose stock left to replace in my 1985 300D someday (when it leaks, "ain't broke, don't fix" is my motto).