No, it doesn't make sense. If $1,200 can throw your finances off then you should not finance the Bronco. Learn how to build wealth then buy a bronco. You're going backwards in life.
I have used just about every all-terrain tire made. In my opinion, the ko2 or ko3 is the best all-terrain tire. Most people get confused when they try to compare a highway tire to a all-terrain. Apples and oranges. An all-terrain tire will never ride like a highway tire just like a highway tire...