2013 GT Sensor Elite 9r UPGRADED

MAKE AN OFFER!!!!!

What's up PinkBike! Today I am selling my dad's like new XC bike. It is a 2013 GT Sensor Elite 9r that comes with some sick upgrades. He got this bike used August of 2013 from a man who rode it frequently, but kept it in impeccable condition. Also, I believe my dad was given the receipt of purchase of the bike as well as receipts of purchase of all of the upgrades. My dad literally rode this bike four times (three days in Mammoth and one at Summit), and I took it for a climb one time so it has not been ridden a lot. Being in his forties, he doesn't ride very aggressively but he has had a couple small crashes. Overall, this bike is in very good condition with minimal scratching and no structural flaws which is evident in the pictures.
Here is a Specs List:

Frame: 2013 GT Sensor Elite 9r with RockShox Monarch Air Shock (Has lockout for climbs and is rather plush, I believe it has 100mm of travel)
Fork: 2013 RockShox Revelation (Also has lockout for climbs and its pretty plush, 100mm also)
Brakes: Avid Elixxir 1 (Not the most powerful but are suitable for the type of riding you could do on this bike)
Wheels: Sunringle Black Flags (The stock ones sucked ass but these ones are strong as hell and sound amazing $300 upgrade)
Derailleurs: SRAM X5 Front (which is an upgrade from something shitty) and Rear both laced to SRAM X5 shifters (They are shifting the best I've ever felt them shift)
Crankset: SRAM
Seatpost: 2013 RockShox Reverb Post ($240 upgrade which makes climbing even easier than it already is on this bike)
If I am forgetting any important parts, please let me know and I will fix it.

Overall, this bike is in really good condition with tons of upgrades that make it awesome. My dad just had the LBS tune everything that wasn't up to his perfectionist standards, so it is pretty sick right now. He also just worked his ass off cleaning the living shit out of it so it looks great also. The reason he is selling it is because he doesn't ride quite as often as he used to, and if he did ride it was with me and my friends at parks. I think this is a fair price for the caliber of the bike along with all of the incredible upgrades, however, please feel free to offer reasonably because I am willing to negotiate. If you have any questions, please message me on here, and we can exchange numbers to facilitate talks about the bike.