I've been working overseas a lot......
Rear bushes are loads easier than the fronts.
Good axle stands, and solid bits of car to keep them underneath, I used the jacking points on mine, they are still good. I only mention this cos one of my alfas slowly tried to kill me as the axle stands gradually were forced upwards (or the body downwards) as the rusty sills gave way.....
Anyhow, the bolts are all easy to access, you may need to put aside half a day for hacksawing, the worse were the lower control arms to axle, I just cut them through, you can buy replacements easier than pratting about with 40 year old "nylocks".
The best tool I ever bought was this:
http://cgi.ebay.com/ebaymotors/BALL-...mZ310087506567
It just pushed the old bushes out, and the new ones in lovely. Never seen them for sale in the UK though.
Mine's all polybushed now and it's ace, my only regret was I also fitted a cage at the same time so I don't know if the stiffness and "precision" came from the bushes or the cage.
Either way, it's an easy weekend, and go crazy with hammerite, waxoyl and copper slip while you are under there!