I just you'd have to ensure that your trailer copes with the weight of the tent on top of your trailer plus all the extra stuff that comes with a camping trip.
I'd be learning towards spending more on getting an actual camper trailer. With purchase a more complete unit, you're closer to getting more organised for camping.
Our trailer is a case in point. It came with deep cycle battery, water tank with 2 taps and sing, plumbed in stove, drawer, kitchen. All of this on a heavy duty trailer that enables us to go more off road.
BTW, tried searching on eBay for the company you quoted and I couldn't find it.
Challenge C/T - Offroad, Softfloor camper
Tool box, Water Tank, Gas Bottle, Kitchen on tailgate, 10Ft Tent