This won't help you at all, but a year or two ago wasn't there some "new" technique developed for working with old recordings where one channel was pushed a bit so it was slightly off from the other? It was supposed to give a better stereo affect to old recordings. I can't remember the acronym for it.
I guess my point being that in your case, being off slightly might make for an interesting experiment.
+T for trying it anyhow, Lee! HAHAHAHA