You don't have to use a hitch extension, it always drives me nuts when everyone says you do. Those things have terrible physics.
You can either use a trailer that has a long enough tongue to reach past the camper overhang to the hitch, or lengthen your existing trailer tongue.
That's what I've done for the past 20 years, handling is superior when you don't have your trailer hitch hanging eight feet behind your rear axle. The further behind the axle you push the hitch the worse it is, that's why 5th wheels and goosenecks tow so much better than anything else.
It's also an extra pain in the butt every time you load and unload your camper when you have to mount and unmount that big heavy thing too.
If it's a really light trailer then it matters less.
