It's not a matter of how much you use it but are you within the ratings of the truck. My guess is you will be a lot heavier than you realize as you are going to be full timing. You will probably push the 3200 lb pin weight. The payload on the Chey is 4020 so that leaves ~800 lbs for the hitch, wife and whatever else you put in the truck. That's just on the payload. You should be fine on the trailer weight until to look at the GCVWR 24,500. With the trailer at 16k and most 3500 diesels like you're looking at weighing in around 8k plus. Close call. My F350 has 3600 on the rear axle without trailer. Another close call on RAWR.
Your call, you have to drive it.
