Well, there is a page on www.nickdrake.net
with tunings listed. I guess they are correct, haven't checked them all out.
Go to HOME PAGE >> MUSIC >> TUNINGS
It is important to realize, especially with Nick's fingerstyle, that so much of his style is in the right hand. You must just play and hear what he is doing to reproduce the strings he picks for the notes he's playing.
If you have trouble with that, start with some simple old Mississippi delta blues songs. He used a lot of that when working out picking and rhythms. That was the foundation for how he learned to play fingerstyle, and he had a passion for that. Nick played a LOT of delta blues when he started. It is evident....a similar kind of passion that Jorma Kaukonen experienced and worked intently on to get that "Hot Tuna" sound going. Then the emotion just took over when working words into melodies, and the rest is history.