Welcome to the sickness, before you worry about what reel/rod to buy I would make sure you have a quality large hoop net with a fin saver bag (Frabill Big Kahuna/Beckman Magnum Musky), quality hook cutters for badly hooked fish (Knipex cutter), 11″ needle nose pliers and a jaw spreader. Without these things in the boat I wouldn’t even bother leaving the dock. Oh, stay away from the cradle…can’t use it if you’re by yourself and are just a pain in the butt, not to mention dangerous for the guy holding them as you’re leading a fish into it. Get the big net.
When you net a fish don’t drag it into the boat, leave the bag hanging over the side so the fish is still in the water, especially the head. Then use the long pliers to remove the hooks, if the fish is hooked badly don’t even bother trying to wrench them out, just cut them, hooks are cheap. The long pliers will give you enough distance from the hooks when a fish decides to thrash when you have your hand in the net. You’ll want a quality set of hook cutters like Knipex so if you do get hooked to a thrashing fish you can cut yourself free, no one thinks it’ll happen to them but I’ve seen guys who have caught hundreds of Musky slip up and get stung…OUCH!
After the fish is unhooked leave it in the net while your buddy gets the camera ready. The big nets act like a livewell and the fish will just relax in it. When you’re ready pick the fish out of the net supporting it’s belly (not holding the fish vertically) snap a photo or two and slip her back in the water. Hold the fish upright by the tail till you feel her strength come back and when she wants to go you’ll know. Great feeling watching those fish swim off strong.
As far as a spinning rod, I use one for jig fishing and once and a while small bucktails. I actually have a combo I would probably sell you…7’H St. Croix Premier w/ Shimano Sahara 400. PM me if interested. The more you get into Musky fishing the more you’ll want to throw the cool new baits and just lot’s of different stuff that a spinning combo won’t be able to handle. I would really consider a baitcasting combo. There are lots of good rods and reels out there. My main set ups are Thorne Bros rods with Diawa Lunas but St. Croix makes a good rod in the Avid series or the Premier is a functional stick. Fig Rig make a nice stick as well as Shimano.For reels I would go with Shimano or Diawa..or Abu if you want to save a few bucks but you’ll have to replace them a bit more often.
Hope that helps.