Hi there! I have noticed your job post and I am ready to provide you some good quality acoustic guitars, bass guitar and drum/percussive sound for your track!
Being from Serbia, which is neighbor country to Greece, I am very familiar with this style of music, which is folk. Arrangement should be done in such way that it compliments this melody. But my national music is very similar in style to the track you posted, so I believe it will help this project run smoothly.
That + the extensive experience and expertise in audio production should give us some decent results - I am not promising wonders, but a hard work to get this to perfection. I have carefully listened to examples you posted.
Feel free to get in touch so that we can discuss your project in more details.
Best,
Andy
AB Sound Production