Well done guys!
The sound is exactly like I had, only weeks before the turbo seized completely. I think you can tell you have an oil leak in the turbo system when the old rubber intercooler piping gets soaking wet with oil on the outside. Mine has dried up nicely with a new turbo.
As goes for tools I needed my trusty little dremel and nut splitter to do two of the nuts off. Sadly I got it out a little late in the process so the threads on a few of the bolts were already pretty knackered. But luckily there is just enough thread left to do the the new nuts up tightly

It was like the nut and bolt threads were welded together by the heat, a lot of resistance on the ratchet and they never "popped" like rusty nut normally do.
If you are going redneck style I think for gaskets, the lower one for the oil return pipe is the only one which is really mandatory to replace to get a moving system again. It seems to be some sort of a lead gasket and it does split in two when you remove it.
I had my new turbo from ebay in China. Really fast, just make sure they wrap it good, it's a long way to travel for a little turbo. If you are able to split the old turbo (i wasn't) I see they supply a replacement core for our turbo, pretty cheap.
http://cgi.ebay.co.uk/IHI-RHB5-4JB1T-4J ... 365wt_1421If you can afford a more permanent fix I think this one is about as cheap as it gets.
Good luck with the spanner party!
It's a bit too far to travel from Norway I'm afraid for me to get there
