Wonder if you have this in stock ?

N53SN-SX043V
i7-2630QM (4 core)-2.0GHz (Turbo up to 2.9) 15.6" HD Color Shine(LED) 4GB DDR3 1066 640GB-5400rpm NV GT 550 2GB DDR3 6 Cell 4400mAH /NV Optimus Technology Win7 Premium (64-bit)
RM3499


Wonder if change the LED to the 1,920x1,080 optional with bluetooth 3.0 . How much will it cost ? Do you offer extra warranty years ? Thanks and looking for your reply soon. And can ask can upgrade to 750gb hdd and how much charges as well as to 8gb ram ddr3