Unit Recruitment Viewer suggests Hypaspists are indeed recruitable by Epirus in Pella (Makedonia) with Lvl 5 MIC (requiring Type I gov of course). So I checked the game data files (am running EB 1.1 with all fixes) - export_unit has 'thrace' (aka Epirus with faction shuffling in EB) listed as owner for "greek infantry hypaspistai" unit, and export_building has it available in 7 provinces, requiring LVL 5 MIC which can only be built in one of the provinces listed (SW, C, n1, n2, n4, y8 - aka Pella)