Being over or under GVWR doesn't mean your safe or unsafe. Being over your trucks axle/tires/wheels and spring capacities is unsafe.
You own it now so take the truck to the scales and get a front and rear axle numbers. Now load the camper on the truck and repeat the weighing. Now you have some real world numbers that will tell you if your actually over your trucks rear axle/tire ratings.
Now, once assured the truck isn't over axle/tire capacities, others make a good point on take a trip and see if the truck needs anything. No cents/sense wasting money on bags/suspension help if you don't need them.
