My buddy just got his brand new 21' boat and I want to rig it up for basic Lake Michigan fishing.  I am thinking 6 rods with 2 being for downriggers, 2 for dipseys, and 2 for planer boards.  I tried watching some videos and didn't find exactly what I need.  Any advice with rods/reels/lengths/line test.  I have only been on a charter boat once and only fish from shore in Sheboygan so real new at this game and just want to rig up something basic.  I have 4-8'6" trolling rods that I think are for walleyes, but they seem to have a fast tip and I think have the backbone to at least work for dipsey or planer boards.  Any info appreciated.  Thanks