An ultralight 5 piece spinning outfit is appropriate for this fish size range. A fly casting bubble or lures can be used for trout in combination with a spool wound with 2-4 lb test. An additional spool wound with six lb test would be appropriate for bass. The sets come with light-weight plastic carrying cases but, I don’t carry any case to save weight. I just bind the five rod pieces with two thick rubber bands to make one thick rod piece for transport.
I have used the same Daiwa MiniSpin system for ~20 years of backpacking without any problems ($35 retail). There are more expensive solutions available but, I don’t understand their value propositions. See http://www.mysimon.com/Fishing/9000-11034_8-0.html?mlpid=31082145 for a couple of major retail sources and additional reviews. Remember that the extra spool for bass is a separate product that you need to order.