Hey, what do you guys think I can sell my X5 for?

Estoril Blue w/Black interior
20" 4.6 rims
BMW Body Kit
Warm Weather Package
Comfort Seats
Sports Package
Navigation
Premium Sound
Bluetooth

18000 miles

perfect shape. Would appreciate some advice here. Edmunds says $48k for private seller. I see them selling for alot more with less equipment.