car buying help 2003 extreme blazer

[dReWpY]

my buddy is selling his car an im thinking about picking it up, its a 2003 chevy blazer extreme with 60,000 miles, its in perfect shape with two sets of rims, stock and a set of 20's

i told him i would match what the dealer was going to give him, they told him 7,000 and he said the highest he would sell it to me for was 7,500, but he wants to take it to the dealer to show them what it looks like and give me that price, he bought it 4 years ago for 17,000 ish so in 4 years he lost 10,000 thats crazy

but its about 1k lower then kbb and the other sites have it priced at

so anyone have any input on these cars, ideas if its a fair price

they said its worth about 8,600 private party price