Seeing as you've done it once, then next time should go a little smoother. Of course I'm not saying that it'll be easy. I did the rear bearing on my 318 a little over a year ago, not sure if it's the same, but even while having all the equipment (I'm a mechanic), I still had a little trouble the first time. Never had to do it a second time, yet, so can't really tell you (since I don't remember) how hard it's going to be.
The only advice I can give is to mark the alignment points, either with white-out or a scribe. Cause as far as taking everything apart, once I got the gist of it I had no problem, just that I forgot to mark the alignment and when I got it all back together the rear toe was way off. You may need to use a press or a lot of hammering, but that's not a problem compared to aligning the rear wheel again to the right specs.
Sorry if that's not much help, but like I said it's been a while since I last did mine.
///M The most powerful letter in the alphabet