I did it last night and wouldn't say it's a pain in the arse. I'm a mechanical r****d and it took me under two hours to take it all out, trim the pump down (see my thread from last night for more info) and put it all back together in the right order.
Your lucky I'd removed the wipers recently then
so the nozzles on the bonnet where the water comes out, mine piss water everywhere. how do you get these off to replace them? do they pull, are they clippped?