I've awakened lots of cars from hibernation over the years.  Other than fluid checks and critter checks, I've always tried to get the oil redistributed through the engine before alowing it to light.  I haven't done this with a Vanagon specifically, but the idea was to pull the fuse on fuel pump to prevent fire hazard, pull the spark plugs to eliminate compression and to allow a light squirt of oil to go in, and run the starter for a minute to pump oil to all of those distant places that have gone dry.  If you remembered to top up the gas tank to prevent condensation before storage, great.  If not, you might want to drain what remains and replace with fresh.
After she starts, watch and listen for a while to be sure all is OK.  When you began driving take it very easy, all of those other parts that move (trans, wheel bearings, clutch throwout etc etc.) all need to loosen up and move their lube around too. 
If all is well, you'll be surprised that she'll run just like the day you put her away.
Gary 
----- Original Message -----
From: Phil Menchions
To: vanagon@GERRY.VANAGON.COM
Sent: Sunday, April 29, 2001 11:30 AM
Subject: Spring startup

Hi volks:
 
Can somebody provide a few spring startup tips  other than the usual fluid level checks. I tried the archives several times to no avail.
 
My van has been parked all winter with the battery disconnected. It was a new one installed last spring so it should be still ok.
 
Regards,
 
Phil
'89 Westy