>3. metal tube crossing over engine...originally black (now very
rusted)...part of cooling system?

This is the front heater return pipe.  Exactly why it goes over top of the
engine, only the wisdom of the ancients can explain, but there it is.
Mine went bad, dripping the sweet stuff on the engine, and I could not
find a replacement:  Even the dealer said that it didn't exist anymore.
So my mechanic removed it, cleaned off the rust, and brazed over the
holes.  The he spray-painted it a nice spec-looking glossy black and
presto, no more drip.  He managed to get minimum coolant escape by
pinching the hoses either end.  He wasn't able to warranty the work,
because it's only a temporary fix, so I'm on the lookout for a new pipe.
(Mechanic is Peter at Ram Auto, Peterborough, Ontario.  He knows
Vanagons, but he ain't cheap.)

Which reminds me:  Are there any other Peterborough (Ontario)-area list
members out there?  If so, I am interested in networking for
local wasserboxer gurus and junkyards with retired vanagons.  Am willing
to trade for knowledge of whereabouts of Calgary-area guru and old volks
home,  ;)  in case you're travelling that way and would like a special
treat.  Okay, I'm willing to give this info for free, by personal e-mail
request only.

Marcus Elia
'84 Westy (Dela)