Hello,
Your project is an interesting thing. Introduce, Januar my name, I was a supplier of traditional musical instruments Indonesia. In my products, there is a stringed musical instruments, people call the traditional custom guitars. If you interested in this, I can work with you on this project. :)
For a custom guitar in popular terms, I have also been made, the standard model guitar with 7 and 13 strings. Other than that, I also managed to make a guitar out of a coconut shell.
If my product does not fit with your project this time, you may need me in the future, and I will be happy. :)
Calm down, I can change the number of bidku (only if you're interested). :)
Greetings from Indonesia,
Januar S. Nugraha | Ethnic-INA