need some help
 

I am looking to purchase a g35 coupe. I went down to the dealer and I wanted the 03-04 models because they had brembos. It has the premium package (bose, spoiler, etc.) with the brembos, 22000 miles, ugly aftermarket rims, its in very good condition except for one ding on the front, and has warranty. They told me they would beat $29,000. Is this a good deal or should I try to negotiate lower? My friend told me 27-28 would be good, but I want to know what you guys think. Thanks for the help.