i seen a used 2001 gmc limited edition 2500 hd truck. the outside looks extra clean. it has 105k miles on it a 10in lift 20in rims dont know exact size on tires but they are big and 4×4. the owner wants 16,000 for it. and its for sale by owner. i work a little job and make a little over 400 a month. how could i buy it and would it be a good choice for me? im a junior in high school. and my parents could help me out a bit.