Looks simple enough, just pop off the struts and add the springs.
I'm also not sure about how much harder it would be to close the boot... So I've contacted Bearing Boys to see if they had any non-green ones and will let you know how i get on. For the sake of £5, i'm going to give it a go over xmas I can get them delivered to the parents in the UK and fit them while the family xmas rubbish is happening
http://www.bearingboys.co.uk/V20x25_...Spring-31026-p