I finally broke down and bought a copy. University of Chicago has published it in a one-volume paperback with a price of $35.00, so I could resist no longer.
The print, however, is a facsimile and it shrinks the original pages way down, stuffing 4 original print pages to one facsimile page. I've got mixed feelings. On the one hand, I'm happy to have the content (normally reliable Abebooks has had no used copies of the original printing available for some time ... I've been looking). On the other hand, the presentation is sub-par. The pages are crammed in order to make the content as large as they can be in a four-up setting. But it only makes me want a copy of the original.