I might be keen on the front pads and rotors if you've still got them. Can you please flick me part numbers so I can check they'll fit?
I picked up my 2006 E53 3.0D for $3k, high k's (355) but full service history and first owner did a 300k round trip 5 days a week. Apart from some minor common issues (exhaust manifold cracked, front wheel bearing going, front LCA bushes worn etc.) it runs and drives incredibly well for it's age and high k's - drove it to Auckland and back early December with zero issues.
They are around, this one turned up on post-a-note - not a place I'd usually look.