Surface pro 4 i5 4GB Ram 128GB hdd with surface keyboard cover and Stylus

I have surface pro 4 1 in one tablet laptop with keyboard (few days used (just open box and system), still new and two years warranty bought from microsoft official online store on 26 nov 2016, original price is 4500, Along with Stylus with pen tip and surface mouse will cost 469 Riyal. Body and screen protection applied will cost 180 Riyal and case cost 70Sr So total = 5215 My offer is 4000 SAR