I have seen those gazibo's that are enclosed to keeps insects out but they are dear to buy.
I just today went and bought a new gazibo type tarp which unfolds and is very sturdy. The top is water proof and it is 3m x 3m and 2.4 high. You can buy sides to it too if you want, it cost $229 from BCF at Lawnton in Brissy. Before this I was pricing tarps, poles and pegs and the price is comparable, however the ease at which this thing goes will save heaps of time sweat and swearing which my wife sure will enjoy
We go for a trip up to Mudjimba on Friday for a refreshing 5 days of kicking back and fishing, looking forward to it
All the best