Did this a few days ago. Couple things to add:
1. To loosen the VANOS solenoid, use a rubber strap wrench instead of an adjustable or open end wrench. I found that a metal wrench would press on the oil pressure line to the VANOS unit while trying to undo the VANOS solenoid.
2. Be careful with the PCV vent tube if you're going to remove for more clearance. It's quite fragile, seems to corrode from the inside out (corrosive blow-by gases?). Mine broke clean off and I know I'm going to have a ***** of a time replacing it. Taped it up with self sealing silicone tape for now.
The difference between stupidity and genius is that genius has limits