land-based popping rods vary dependent on the size of the fish you're looking for. The rods range from PE4 to about PE8 so it really does vary. Rods tend to be around 10 feet in length and have a progressive action through the blank. Manufacturers that make land based popping rods include Fisherman, Ripple Fisher, Zenaq and MC Works. I'm sure there would be others as well.
I'd also point out that the South Africans have been doing this for years and have a range of rods they use over there, primarily with overhead reels.
I don't have much knowledge in the area at all - perhaps some of the guys can add to this.
reel size would of course be dependent on the size of fish and rod you're maching it too. Most of the guys I know use standard GT reels.