hey matt, mate ive done a lot of research into this as i am also looking to buy one in the next week or two and ive found out that the cheapest and by far the best way is to buy from a private seller, regards to price you can pic a good stocker up for 10,000 - 14,000 like ToF said.... its real easy to find one with low k,s and you might get some mild mods with it too like exhaust, rims etc.... hope i helped mate
Luke