This is only the start but it sounds spot on to me:
Tuning Drop D (DADGBE)

----------------------------------------|
----------------------------------------|
----------------------------------------|
0-99-44-55-88-111-0-99-44-55-88-131313--|
0-99-44-55-88-111-0-99-44-55-88-131313--|
0-99-44-55-88-111-0-99-44-55-88-131313--|

or alternatively you could play:

-----------------------------------------|
-----------------------------------------|
--44-------33-------44-------33----------|
0-44-44-55-33-111-0-44-44-55-33-131313---|
0-22-44-55-11-111-0-22-44-55-11-131313---|
0----44-55----111-0----44-55----131313---|

Thanks for checking this out!