Look KG 451 - Full Carbon

The bike is in great shape and is an absolute joy to ride, it's super smooth. I used it primarily for triathlon training, but I got a knee injury that kept me out of races for a while and have lost interest in that time. It's a few years old so it has some scuffs like you would expect from any used bike, but overall it's in very good condition. Here are some of the specs:

-Fully Carbon Fiber frame and fork
-55cm Frame (I'm 6'2" and fit fine, but any taller and this bike would be a bit too small)
-Bontrager Race wheels
-700c Tires (tons of life left)
-Shimano Ultegra Brakes
-Shimano 105 Derailleurs
-Shimano 105 Crank
-Bontrager seat with gel insert
-American Classic seatpost
-Cateye computer

Overall, it's a great bike and I hate to sell it, but I'm trying to make the switch to mountain biking so this has to go. I'd like to get $1000 for it but I'm open to offers. I'd also be willing to trade for a comparable mountain bike. (Preferably hardtail 29er)