I do have a “left field” workaround suggestion 
…
Re-install Cubase 7.0 alongside Cubase 7.0.6 (simply rename your existing “Cubase 7.app”, temporarily, so that the re-install doesn’t overwrite C7.0.6).
A quick test here shows that, when a 7.0.6 Project is loaded into C7.0, the formatting seems to remain intact (although you may need to double-check the page size in “Printer Setup”).
You can now Save as pdf (with the file size the same as it was in Cubase 6.5.5 32-bit… remember C6.x didn’t print at all on Mac OSX, 64-bit ).
Yes, the pdf does have the non-proportional scaling problem (which brought about the change in the Cubase OSX printing code in the first place 
), but, so long as you don’t mind having some lines (and some symbols, such as slurs) printing too thick, you might be agreeably surprised by the result .