Need clutch info - 92 Westy 1.9 TD AAZ

[Gizmoman]

I have a sweet 82 VW westy that was originally a 1.6 non turbo.
The previous owner did a fairly tidy install of a 1.9 AAZ and swapped the stock low geared transmission for a four speed gasser.

I bought the van from a third party and don't have contact with the guy who did all the work - so no idea what clutch is in it now.
I can tell that it won't be long before I need to replace the clutch (getting closer and closer to the top of the travel).

Does anyone have some ideas as to what is required and recommendations as to:
1. What is the best type/brand to get?
2. What else should be replaced
3. any other "tips" are welcome

I am looking for a real strong unit as the one that was in it when I bought it didn't take long to wear out. I am running 15 lbs of boost and plan on increasing the tire diameter to lower the revs (don't kill me about the 15 psi - I don't keep it there for long). This will put additional load on the clutch and I want to get something that will last.
Wish I knew what is in it now but all I know is it's not tough enough.

I'm planning a trip from San Diego to Rochester in September and this clutch will never make it.


Thanks