if you go to studboy's website, they provide you with a good list of things to buy if your not already equipped. for example, stud pattern template, track hole cutter, sharpening tools, ect. granted you dont "need" these things, but they do help make it easier.
Studboy Traction Accessories
also, you dont need the tunnel protectors if you've got a fan, or if your heat exchangers are under your foot wells.