Hi,
This really is one hell of a job on Mig.
I have changed both sides on mine. NS took 5 days because bearing siezed in, OS took 3 to 4 hours as no probs, and had already done one.
Saloon and Estate have different bearings. I think mine were about £50.00 each from Europarts.
To change with good secondhand will mean exchanging not just the hub, but the hub and trailing arm complete.
You have to have a load of gear to do this job. Pullers, bits of large pipe, bits of iron etc for strongbacks, studding etc, Ramps, Jacks, 32mm socket and means to apply 250 ft lbs force, as well as understanding how it is all assembled. A good mechanical aptitude, and loads of self confidence.
If you look back on General help 15 Nov 2009 @17.04 and 18 Nov 2009 @ 01.12 and 25 Nov 2009 @16.31 and threads around 5 Aug 2009 you will see some of the problems encountered.
If you still wish to go ahead, PM me, and I will send you descsription of how I did mine and drawing of some of the gear you will need.
Roger