Have you ever plowed snow before? Not unheard of to plow snow with a two wheel drive. You can do it, but buy a really good set of Ice chains. If you've never plowed snow before, have fun. Go easy.
Have you already found a good deal on a snow plow for your truck? price 'em out. Not cheap, even used. Especially if you figure that the plowing with a 2 wheel drive might not be the way to go. Money spent and still need something to plow with? Never know till you try.
Talk to your wife. Try to rent the ground to the farmer for one or two more yrs. Don't give up that option until you have a couple of yrs behind you. If you've only owned 1 1/2 acres , a "friend" with tractors might be nice to have. Also, ground that is not maintained, will grow up to trees and brush very quickly. Considering you haven't decided if you're going to buy a tractor, be nice to keep the ground cleared, maybe make a couple of bucks for rent. Just a thought.
FWIW- I own about 50 acres of field. Got a nice tractor, but i rent my ground out every chance I can get. One field I ask for no rent. Just happy to get someone to mow it.