Our rally organization team member Turgut keeps amazing me.
He just drafted a full list of Turkish Airports with customs facilities and airports which sell Avgas. Interesting to know when you are flying out of Georgia on your way back to Western Europe
Reentry to Turkey could be made from Ordu_Giresun of from Samsun airports.
For refueling you can use Engiz or Sivrihisar airfields.