plowing snow isn't for everyone i have been doing it for about 5 yrs for my boss and shoveling walkways for him for another 6 (since i was a kid) . my boss has chevys i hate plowing with them the frame rails sit to low along with the truck right height. also i would look into some type of strobe light because during snow storms every jerk O** and there mother is out not paying attention . as for pricing drive ways ex. 20ftwide X 50ft long is like 60 bucks and then to shovel a side walk figure another 15-20 bucks maybe more maybe less depends on length. also if your going to plow get your self a good tow strap to pull out those idiots that are out on the road that shouldn't be there. i don't sand so i wouldn't know what to charge for that but i know our customers don't want sand because they don't want to track it into there house.
if you do, do drive ways try to get a bunch in the same area like 5 on the same street make for money than driving across town to do one driveway.
i hope i was able to help in some way
chris