Approval or Disapproval of setup

I think you should be fine. If you want to tweak something in the future, check your tires. Moving up one strength rating could give a more stable rig and add a bit to the trucks payload. Also consider upgrading the shocks. They can make a very noticeable difference. I see you have room for one sway bar. The trailer is pretty long so adding a second sway her would help and they're cheap. Nice rig, hope you get many good trips with it!