Second hand...... £2k will buy you some exotica.
Or build your own..... five minutes of googling and I've built you a used frame with NEW Xfusion Fork, Superstar wheels, tubeless tyres, Reverb seatpost, carbon bars and a full 2x10 SLX drivetrain for your budget. (The above build includes a £700 budget for a used frame of your choice.....)