That camper is designed for a compact truck, but not one with a super-short 4.5' bed as pictured.
As others have alluded, what this means is that all the weight of the camper is behind the rear axle of the truck. This makes the truck unstable. It may drive fine in a straight line but handling will suffer in turns and emergency maneuvers.
To me the weight isn't so much of an issue, as WHERE the weight is. You can upgrade tires and add helper springs, but you can't change the fact that the weight of the camper will be behind the rear axle of the truck...
It may have worked fine for him, but you're taking a chance here.
Now if you decide you want it anyway, you can use load straps to anchor the camper down for the trip home. Just take it slow and easy and stick to "back roads." Then you can save up for proper tiedowns and the suspension add-ons you'll need.
It's really surprising me that so many people are telling you that this is a bad idea based on weight alone. This forum is full of people who regularly overload their trucks, including 1/2 tons and compacts, every day and don't think twice about it. I used to ascribe to "the ratings are the ratings and nothing you bolt on will change that" which is still true, but seeing so many people grossly overloading their trucks and happily getting from point A to point B, I guess it just doesn't matter all that much as long as the truck is in good shape to begin with, with good tires, and properly maintained.
