Evening, classic story, bought a lemon! Ive been a fiesta owner for 4 years, then it died, engine started knocking really loudly, so bought another fiesta, didnt realise it only had 3 weeks MOT left, I'm an idiot, anyway, needs new rear pivot joints (bushes), my question is.... Is it worth doing yourself? What kind of problems can I run in to? Apparently, you jack up the rear, axel stand it, then take off rear wheels and then lower/raise the rear axel with a jack until its easy to pop out the rear bushes, but that seems way too easy!!

So I'm after any advice that can be offered etc.
Many thanks in advance.