I've been debating on how to best angle the neck for you. I have two options: angle the heel of the neck or angle the neck pocket. After doing some measuring this moning, the existing heel is too thin and that's been my dilemma. So, I'm leaning toward adding 5 or 6/32" of maple to the heel and then it will have sufficient thickness. Once I have some wood to work with, I could plane it to 3 degrees.
If I were to angle the heel pocket, the neck heel is still too thin. So, having a thicker heel will help. I'll think about it some more before I decide.
I've been wanting to build one of those jigs for doing an angled heel pocket anyway. So I still might go that route.