What surprised me was how easy it was. I have the Haynes manual and that only devotes 11 paragraphs to it. Getting it out took no more than two hours on Wednesday afternoon. The following day was spent changing everything over, dealing with some rust at the bottom of the inner wheel arch, and refitting the axle. Putting it back in was a bit awkward. Gravity helped it come out but was no real help putting it back.
Friday was spent faffing about bleeding the brakes, refitting the handbrake cables, silencer, etc. A seven mile road test showed the effort and expense was well worthwhile.
It could have been done quicker, but hey, I’m retired. I just worked as long as I felt like it then went and had a beer!
Parts used: non-exchange rear axle, 4 mountings, litre brake fluid, 2 new rear hub nuts. Parts cost: £176.06.
I used an axle from these folks: http://www.antalex.pl" onclick="window.open(this.href);return false; via ebay and would recommend them.
(Disclaimer: I have no connection with them other than as a customer.)