Hey Henry,
I just found this thread. Great build so far. I have extensive background modding an avalanche. They are great rigs. I would recommend getting under the truck and reinforcing the steering box to the frame. I've seen them start to separate from the frame and it reacts like a death wobble under brake. Easy pre-emptive fix. Not sure how wild you want to get (your build and direction so far to date look great) but I'm always available for questions via pm here. I'll post a couple of my old rig if you don't mind, just to give you an idea what I'm referring to.
Original built front end
In 4Wheel and off road with A-Arm front end
Rebuilding the front end for more travel and strength as the CVs were a constant weak point.
Interior pic of cage
Cage continued through to bed, rear shocks to four linked currie 9" and aluminum has tank under spare tires we built.
Lastly one of my favorite action shots.
Obviously a different style than what your looking for but my point is I've been building and rebuilding this rig for 10 years and any help I can be information wise I'm here to help.
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