Turkey is extremely tight, flying wise. I flew there this year but the Turkish end was all organised by the Istanbul Aeroclub so I had all the PPR stuff sorted.
My vague recollection of others' trips there is that foreigners can fly only between international (Customs) airports (even when flying internally), and mandatory flight plans, and PPR for each flight. You can also expect PPR at the airports, as is standard in the 3rd world.
Even Greece is going to be easier
Been down there a few times too.