L322 4.4 bmw vanos removal socket size ?

I know I need a 32mm socket to get this off but what depth do I need. I’m finding it frustrating only very few detail their socket depth I’m not prepared to pay £80 for one socket (bmw432). Has anyone found a cheap alternative as it’s not a hub nut socket required to get this off. Also is there a sealing o ring between the solenoid and where it screws in. Thanks

replying in your other thread.....