I shoot docks, and many other tight quarters, with whatever I have in my hand. I've done this quite a bit so don't pay attention to what I use. I agree with what Crappiepappy said about choices. A medium action rod, 2000 series reel is what a lot of folks already have and this will work to get you off the ground. Fine tuning after you have a feel for it will come later. The biggest thing I can say is to not overthink it. It's a simple technique and will come easier and naturally after you have done it a while. An example; I was lucky to be able to hit an area under a dock on posts with lots of clearance when I started and now, though I'm probably a bit rusty, I can hit a 4" square hole between dock floats and skip 4 or 5 feet back underneath. It's all about practice, not equipment. Lots of folks learn the basics trying to hit a coffee can at a given distance in the yard or the garage. The rod ETfish stated is a good choice but try before you buy or you may buy again. Keep us posted please, you're teaching others as well.........Skeet
Creativity is just intelligence fooling around