And your question is. . .
Why not use a font that actually has that glyph? This will avoid any issues with tracking
Open the Glyph panel (Type menu, Glyphs) and select a font that has extended features, a font with Pro in the name is usually more likely to have these glyphs.
In the example, the top text is Myriad Pro and the bottom text is Adobe Garamond Pro
Select the glyph you want in the Glyph panel. Glyphs with a small right arrow at the bottom means that there is more than one similar glyph. click and hold to select.
Those kind of glyphs values are found in "openType" fonts(like,Myriad Pro and Adobe Garamond Pro), but the same glyphs value are not found in "Type 1" fonts(like Minion and Optima)...
So what will do for type 1 fonts???
Minion and Optima are available as OTF fonts, too. But anyway, for letter+accent combinations not present in Type 1 fonts (and OTF fonts too, for that matter), you can use http://www.kahrel.plus.com/indesign/compose.html