I saw the mid size after I posted and didn’t think it worth an edit…and you don’t seem to need an F-150 or equivalent.
If the plowing is the heaviest work you have then a Ranger should do. I think the price may be best also…but it has been a while.
Butane/Natural Gas conversion kits should be available at not a high cost, that would allow you to use both gasoline and the others, though it will produce a bit less power so it is better to select gasoline when the power is needed. I would just recommend a V-6 because you really won’t like the 4s that much. You will also want to weight the back end for extra traction. A few sand bags or wood will do it.
The worst thing about plowing drive ways is when the big plow plows you in.
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