On our Camprite TL8 we use Safari Cans for extra storage while camping, as we have twin tanks in the patrol we are ok for deisel. The Safari Cans serve for extra storage or carry extra water to camp and rubbish home or as a washing machines while travelling. Just google Safari Can to see them.
Couple of other things on the Camprite, I got a sleeve made to go over a couple of the speader bars and attach on LED lights.
We use an beach umbella in a rod holder that I put on the kitchen for lunchtime shade, or quick overnights.
Fitted pushbike mounts on nose cone .
Fitted tubes for poles and speader bars on top.
Fitted elect pump for kitchen and gas cooker mounted in.
If you are travelling a lot put a tee piece in your water tank to kitchen tap hose.Then put a tap and hose fitting on that, so you can pressure fill at a servo with your own piece of food grade hose. It is heaps quicker than watching the bubbles come up. Also you know you are full and hopefully do not run out of water like we did thinking that the tank was full because it was bubbling out the filler.
Enjoy your Camprite they are great especially with kids.