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ENGINE SWAP: "MC" Turbo wiring questions

I am looking to put a 162hp "MC" turbo engine into a Volkswagen Westphalia
camper.  I have swapped other CIS based engines into Vanagons and Rabbits
before but I have a few questions about the wiring of the MC:

PIN 8 BL/BK - This goes to the display computer - I assume I can leave this
PIN 14 G/V  - Is the connection to the AC Control Head - I assume I can
leave this unconnected?
PIN 17 Y/BL - This goes to the display computer - I assume I can leave this
PIN 31 Y    - This looks like it receives power when the fuel pump is on,
why the knock sensor light attached to it?
PIN 32 R/Y  - This goes to lamp control unit.  I assume this is telling the
control unit if the engine is on or not - I assume I can leave this

How important is the 3-stage radiator fan relay stuff?  I understand the
need to circulate coolant through the turbo when the hot engine is off, but
the Vanagon has a dumb dual temp "fast and faster" speed rad fan.  Is
connecting the Audi rad fan relay to the turbo coolant pump enough or must
I interface it to the Vanagon's rad fan as well?

Besides the idle stabilizer and other CIS related components, what are the
other things that I *must have* in order to make this work to it's fullest
potential in a Vanagon?  I intend to find a 5000 Turbo with a dead
automatic transmission as a donar car, so I will more that likely have a
complete car to play with.  

While I am at it I want to make the MC perform better, what should I do to
it during the swap?

Thanks in advance!

-- David Marshall   				     --
-- 78 1.8L VW Rabbit, 80 2.0L VW Caddy, 87 Audi 5KSQ --
-- 85 VW Cabriolet, 88 2.0L VW Syncro 16" Double Cab --
-- Volkswagen Homepage   http://www.volkswagen.org   --
-- Volkswagen/Audi Parts http://parts.volkswagen.org --
-- mailto:david@volkswagen.org - Quesnel, BC, Canada --