I need to change a front wheel bearing and have decided to leave this heavy job to the nice people at Omicron, but in order to do this I need to remove the hub upright as it is a lot cheaper to send a hub upright from here to Norfolk than it is to drive the whole car.

I know I will need the tool for restraining the leaf spring and I'll need the 6 tooth tool for removing the hub nut. BUT, when I look at the workshop manual it makes reference to a puller and screw tool that are used for extracting and re-assembling the drive shaft from the hub.
The tool numbers given are Puller 8052010 and Screw 8052176 (which I gather is screwed into the threaded "female" outer end of the drive shaft.
Are these tools really necessary? I hoped the shaft would slide in and out of the hub with relative ease?
Also, what is the torque setting for the hub nut? I can't find this detailed in my workshop manual, but know that it has to be hefty.