I say take it off and clean it.
You can do quite a lot of cleaning with out that much work. I had a guide up on here the other day. Have to find that out. will you be fitting it yourself?
I have a turbo from my 2001 AJM golf. Its not the prettiest thing in the world but i believe it is the one you need. I replaced my engine cavity to an ASZ so it is no longer needed but working fine i believe. might take me a while to hunt it out.