What would be the best possible way to get this truck?

Well, are you sure this is the truck you want? Personally I think you can do better but it all depends on how much your wanting to spend and what payments you want. Unless you have test drove this truck, had it checked by a mechanic and have carfaxed it or have some records on it, I would keep searching if I were you. Otherwise when ti comes to getting this truck I would just ask your dad to co-sign so it builds your credit also. 2000 is a great down payment but you still going to owe 10000 on a 2002 , that doesn't even sound good. It's all up to you.