Just finished mine at 125k miles and like others, the timing of the VANOS reluctor disk is an issue. I used the Orion Motor kit off Amazon and it has everything in it for an easy to digest price. Why I got the timing of the Vanos wrong is still nebulous to me. However, if you double check your work with the upper timing covers on you might get away with only doing this once.

If you lock the flywheel and the camshafts with the kit, the basic timing will be fine. The position of the Vanos disks should be double checked once you get the upper timing chain covers back on. Like the OP said, make sure the Vanos on Bank 1 is turned fully CCW and then check with the holes in the upper timing cover. If you are slightly off, reset the reluctor plate holding the Vanos fully CCW and tighten the reluctor wheel.

I did have to drive it for a few days to get the Vanos seal to wear in. Still have to change the chain tensioner but there is another car undergoing surgery in my garage just now.....

Good luck!

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2003 4.4i black ext./black int./black headliner (kid's runabout)
2014 535d X-drive, M package, silver/black interior

Sold but not forgotten:
2009 E70 35d, black ext./black int./black headliner (sold 2021)
2006 4.8iS Le Mans blue/cream int./black headliner, SOLD in 2012 sadly...

Other hardware:
2015 Cayenne S (wife's new DD and definitely wroooommmmm)
2016 Tundra 1794 edition crew cab, luxo hauler
2005 Tundra crew cab, weekend hauler. Sold after 150k very happy miles.