For Greek, the voicemod will not have a koine pronunciation but a classical one.
A bit anachronistic, don't you think? OTOH I'd be really anxious to see how people would encorporate the pitch accents in 5th cent. Attic, if anyone was up to the task heh
Ofcourse one could go with stressing the relevant syllables, either way that would be better to show the evolution towards the Koine language.