As far as trailer hitches go, I HIGHLY recommend the Propride 3p hitch or the Hensley arrow.
Hensley Arrow Hitch vs. ProPride Comparison Truth | ProPride Hitch Blog
They are expensive I wont lie, but they are the nicest hitch I've ever used. they are very different at first but have been a life saver on a number of occasions for me. They allow me to turn sharper, (past 90*) as well as eliminate sway!
I used the fastway E2 series round bar hitch and loved it on our previous camper. I since traded for a 37' bumper pull. I was initially towing this with a 3500 single wheel 2006 cummins and the trailer liked to toss the truck around. Not excessively by any means, but I didn't like the cross winds or passing trucks... Once I installed the propride the difference was incredible!
The propride and the hesley eliminate sway by creating a new pivot above the rear axle. This allows the trailer to follow as a fifth wheel would. There are many videos and threads about these hitches. They are at least worth a look...
I personally love mine. I cant hitch up significantly quicker with this hitch vs the ol' ball and socket style...
When looking at campers, make sure you stay comfortably under your trucks rating, especially with your low gearing...
I will give you my recent past with campers to hopefully lessen your mistakes!
We originally had a 04 chevy with the 5.3 engine. We had an older pop up we pulled for a year to see if we liked camping. We loved being and about so we bought a new entry level bumper pull, roughly 28' long and 5-6000 pounds. We pulled it home with the chevy and I was VERY disappointed. I traded it right way for a new (at the time) 2010 crew cab short box 1500 ram with the 5.7 hemi. Pulled it a few times with that truck and absolutely loved it. rode nice, handled the trailer great. We began talking about trips into the mountains as well potentially buying a bigger camper. I then traded the 2010 for a 2006 ram 3500 single wheel cummins. Truck did an awesome job pulling previous camper into the mountains, wasn't terribly impressed with the fuel economy but not a big deal... We then traded the camper for another new bumper pull, more high end and bigger. part of the reasoning for the trade was we had axle troubles and many other problems. We had looked to trade prior but were going to take a big hit price wise till all the problems popped up... Fast forward to recently, we have our first kid due in May of this year. The wife wanted something nicer, newer, quieter and more room so we traded for the current 2015 2500 crew cab 6.4.
long story short, plan for the future and make smart decisions... Fortunately we were able to trade and make some really good deals so I didn't ever really lose any money... but sure could have...