I'm glad things went well - they might not the next time.
I suppose you know the limitations of a 1/2 ton but, if loaded, you have about 2k lbs. of pin weight in your truck; which will exceed your payload considerably...then there are the people etc. that must be in the truck. I truly hope you have replaced the OEM tires. Air suspension does nothing to help your truck "support" the weight (ie; increase payload) it just helps level it.
I got rid of my 1/2 ton Ram because I was 200 over payload with a 10k "travel trailer" - you have a fiver so that load increased dramatically in the truck. Just so you are aware.