replacing vacuum pump on X6

[igorbmwx6]

Has anyone attempted to replace a vacuum pump on X6 (p/n: 11667566291)? Is there a DIY available anywhere? This is what I was told by the BMW dealership that is wrong with my X6 and I am planning to attempt to do this myself and save approximately $4K on it:
1.) Replace vacuum pump
2.) Replace intake tube seals at turbo chargers
3.) Replace crank case vent valves on both valve covers and other tubes

Any help and/or comments would be greatly appreciated guys