Well, I don't know how serious you are about getting into musky fishing, but here's my experience. I would not get anything smaller than the Toro series if you are looking into a Revo. The bass Revo's will get tore up, especially if you intend to throw some double cow girls (I know that the bass series could fight a musky as I have caught quite a few while bass fishing with one, but as others have said, it won't hold up to the lures used when fishing for musky). I have a Revo Toro Winch that I purchased for dedicated bucktail duty. It performs that task ok (i.e., won't wear you out), but it sucks for every other musky fishing application (and to be honest, I not 100% fan of how it functions with the bucktails). It is just too slow of a reel. It's too slow in picking up slack while fishing a Bulldawg, it's too slow for my liking when fishing musky crankbaits, it's too slow when I want to pick up the pace on the bucktail (you will really be cranking). With that being said, do not get a high speed RevoToro (6.4:1). I have a few of the High Speed version, which I love for jerkbaits and topwater (really picks up slack), but 5 casts with a double Cowgirls and you'll be looking to pick up that lighter bass gear and find some largemouth for a break. Long story short, I do feel that a 5.4:1 Revo Toro is the best all around musky reel you can get (either in the standard Toro or in the NaCl model) and it is no where close to an overkill. If you start looking at a Penns International or something like that, then I would say you are getting into overkill range.
Alright, let's talk about your rod. I know you didn't ask, but if you are going to spend money on a Revo Toro (which even a good deal will run you $180 to $200) then you might as well get a decent rod to go with it (as they say, if you buy quality gear the first time, you will only have to buy once). That Whopem Stick if I remember correctly is a fiberglass rod geared to Catfishing. From the ones I remember handling (white blank with some blue and red accents) it is quite heavy and soft (very moderate action). Your arms and shoulders will be cursing you out by then end of the day (though, to be honest, they will be cursing you out by the end of the day anyway for even deciding to take up musky fishing). May I suggest a Tackle Industries Musky Rod? In my musky line-up, I have G Loomis (both Maroon and Black series), St. Croix, Bluegrass, and Tackle Industry Rods. By far the best value is the Tackle Industry Rods (however, I will admit, the best performing rods are the G Loomis Maroon Series, but they cost three time that of a Tackle Industries Rod). A 9' XH Tackle Industries rod paired with a Revo Toro 5.4:1 reel will handle just about any musky lure you want to throw (unless you want to start throwing Bulldawg 2-Pounders, which will move you up into the XXH Model and expedite the need for rotator cuff surgery).
Sorry for all the unsolicited Musky Gear advice. Good luck in your search and I hope you stick that first musky this year!