I do hope you realize you will be limited in what baits & methods you will be able to utilize, Crappie fishing with a baitcasting outfit. Not that I'm saying it can't be done. I'm just concerned that a <$50 rod & Crappie Maxx reel would not allow you that many options. I doubt you'll be doing much casting with this outfit, unless you're using 1/4oz baits (or smaller ones, with added weight or a float).
Most baitcast rods at 7.5-8ft are probably going to be much too stiff to do any light bait casting ... unless you look to the Berkley Cherrywood series. Or you may want to consider a Shimano Scimitar 8'6" Med action. But, you're likely to find that baitcast rods over 6' are going to have long or extended handles, & Medium or heavier action blanks.
... cp