Doesnt sound like a bad deal to me at all. You'll love plowing with that diesel, great low end grunt, and plenty of weight in the front. Don't be afraid to wheel and deal a little bit, even though it sounds like your getting a great deal with a plow and a dump included! Plan on putting some money in it though, assume its due for all its fluid changes ect. and go through it all. This way you'll have piece of mind that everythings good, and if along the way you do find something wrong you'll know and can fix it before your left stranded, in a parking lot you've only plowed half of (ask me how I know).