I either use a fly rod or an ULTRA ultra light spinning rig. Rooster Tails are deadly for small bass and perch. For big bass, rubber baits like lizards or worms or big top water brush popper flies. The size of a field mouse. The rods store in florescent light protector tubes (home depot). Lures/tackle store in a very small plastic box, maybe 1" thick, 6" long.
The tricky part is the rod. I have one dual purpose fly/spinning rod that breaks down into six sections. The action is horrible but does the job. Most ultralight spinning rods don't break down so you either carry them whole, or cut them down and install sleeves...a pain, but possible. You'll need to find a place that sells rod making supplies. There are some very tiny spinning reels out there, shop around.