go with high angle. Jess is very helpful. He built my front shaft, and lets just say you don't want the thing to come lose and hit you in the head, that thing is heavy.
As for your angle problems, you may not like me saying this, but lose some lift. I saw it a week or so ago, and even if it is settling, it's still to tall for just 37's. I thought my truck was to tall, and its short compared to your's, and I didn't have all that extra wieght up high because mine was just a single cab truck. It most likely will be easier just to lower the truck a bit, compared to cutting axles or swapping drivetrain components