Ok I see some problems already. You haven't decided what you really want yet and the more you look, the more confused you are going to be.
You want a 4 speed, then DON"T look at any automatic cars, it will confuse you.
You want big block, then skip past the small block cars.
You want black or high impact then concentrate on that.
Find 3 cars that you like, post up here and I'm sure you'll get great advice on pricing. Th eonly way you are going to move forward is by locking down now what you want. Find the cars, then start making offers. The deal will then be the first person that accepts your offer is the car you will buy. Start your offers $12-15k less than what the people are asking and move from their.