Vanos rebuild is a little involved, you have to lock the cams with the timing kit. I just did this on E36 m52 and it was a nice improvement. The unit was rattling bad and there was a lot of play. Runs great now.

For the valve cover, the only thing that hasn't been said is a couple small zip ties to hold it in place while moving it over, as you always see done with the oil pan. On the X5 I went for new genuine bolts. On the e36 I got the bremmen bolts from ECS and they are fine. I didn't want to try the uro bolts. Agreed on no torque wrench, new rubber grommets.

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'05 E53 3.0 6mt
'17 F30 340ix 6mt
'96 E36 328is, in progress