Michael, I see you went with shaveable rivets to attach the skin, did you also use 3M tape or Sika Bond as well or just the rivets? Are the corner pieces also attached with rivets & or tape? Looks like you placed the rivets about 3 or 4 inches apart (very neatly too). Did they get painted after shaving?
Choice of skin material and method of attachment are still the biggest decision I am working with in the design phase of my build. Concerned with taped joints popping open, but rivets are lots of holes that have the potential of becoming loose and creating a path for water to enter.