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A lot of it is personal preference but minimum you want something at least around 30" medium/mediumheavy action. Light rods don't work well because its hard to get a good hookset, esp in deep water. I like a baitcaster reel for togue but also use a spinning reel that works well too. You want a good drag and the reel to hold at least 200-300 feet of line. Lots of info in the trout section of this site.
If money is an issue You can make a pretty nice jig rod with old aluminum arrows Make blocks out of good hardwood or poly and drill tight holes so you can slide your cross sticks 12" apart on the main shaft. use the noc end for your tip . Its also possible to make a grip handle out of an old rod. Then you can use a reel of choice. the cross sticks keep your rod from sliding down the hole when you turn your back. the rod sliding on the ice gives a nice alarm of a hit.
I hate watching people peel 30 lb mono off an open face with their gloves on, that are soaked in gas from filling them sled up that morning creating slinkys in front of them, lighting up a flasher with their coils rope and thinking they have found a school of bait, and never get a bite. Rant over. If you are serious about jigging, the best $21.99 you can ever spend: