OP, not sure if you've paid for your trailer yet or not.
When we bought ours, we paid for it with a home equity line of credit. With mortgage rates so low now, that could potentially save you a LOT of money. We paid ours off in about 3 years, so it worked out great for us.
Any full size pickup (half ton or better) should pull that camper. The biggest thing to consider is PAYLOAD. Thats the amount of weight you can add to the truck. That includes passengers, hitch weight, firewood, bikes, grill, chairs, etc. Your trailer is pretty small and light, so you have lots of options.
If you have a growing family and plan to upgrade to a bigger trailer, I'd suggest you start looking at a 3/4 or 1 ton truck to future proof.