I don't suppose you're near me 'cos I know a bit about electronics and fixed my Rutland. I suppose you could post it to me, but I don't have a lot of time at the moment - depends how long you can manage without it/them.
I'm not so sure as Chris that the sludge one is a write off - depends how far the sludge has got (and what sort of sludge), and if you can open it up, clean the sludge out and leave it somewhere warm and dry for a night you might be OK. At the risk of stating the obvious, if you do open it up, make sure it was disconnected from it's power source for at least a few mins first to allow the capacitors to discharge.
mab