Foreign Ministry Archives of Turkey are closed for all researchers, and the Republican Archives of the Prime Ministry of Turkey (Ankara) doesn't have a goog relationship the Turkish Foreign Ministry.
Yes, I have asked them a couple of weeks ago, but the answer isnt satisfying: they are also waiting for the news from the Foreign Ministry about the transfer of the archival material, and it should happen - soon...
Well, I too hope it won't take a couple of years. Until that time comes, I will change my interests in that topic. I hope that our constant inquiry in this situation and public interest will speed up the process.
You are right: these Turkish sources are extremely important and needed for a more balanced picture of the mentioned periods. I will write here as soon as there is any (hopefully good) news on the issue.