[NTG-context] Kerning pairs for Optima-Italic

Hi, after I converted MacOSX's Optima.dfont for usage with TeX I experienced that this Adobe Optima (Regular, Italic, Bold, BoldItalic, ExtraBold) doesn't have extra kerning pairs. (And I don't have any idea how to create these on my own.) So I had a look at WalterSchmidt's page (home.vr-web.de/was/fonts.html), and fortunately he provides files for Regular and Bold - which work fine - but not Italic or BoldItalic fonts. So now I just have to find metric files (including kering pairs) for Adobe Optima-Italic and Optima-BoldItalic. Does anybody can help me with that? Thank you, Steffen.