I bought a manual for my 90 GL at = the parts counter of the local VW dealer (Bozzani, Covina, CA) for $5.00.  = They had many for different years and models in a box.  I figured they = removed them from the trade-in vehicles (since I had just purchased my used Vanagon = from a different dealer without a manual or the jack kit).  So check your = local VW dealer they may do the same thing.
Loretta
90 GL
87 Syncro