<<<Well ,here is the new plan. I just got a throttle body from an 83.5,or 84.
  It has 2 throttle switches and is low mileage(82K).My 85 has 1 combination
  switch,currently,to do the switching chores.. However,both throttle bodys
  have wiring harnesses from the ECU that contain only 2 wires. The throttle
  body that has the 2 switches ,has the harness branch off into 2 extra wire
  ends.The Bentley shows this to look the same in each schematic(84 and 85).
  I can splice this into the current wiring and solve the problem, right? The
  reasons I am doing this is costs($25- once again,still more than I wanted
  to spend).I can adjust this ez, where as the late switch may need the TB
  removed to adjust.I can get replacement switches from other junked VW cars
  to fit this TB. The wiring from the future replacement switchs will need
  push on plugs added(no problem),if I cannot find a doner vanagon made from
  83.5 to early 85(shouldnt be hard to find).The early WBX throttle body has
  no adjustment screw on the throttle stop. Only an adjustment screw for the
  decell switch.Anybody know if this TB swap will cause a problem  in the
  preformance of the engine?Cant see why It should,but then again, shouldnt
  have to do this anyway>>

  In reading this TPS solution, here is one more item of interest you may consider.

  Be sure to purchase a NEW TPS actuating cam and retainer.

  This plastic cam is usually the first thing to wear out, and is most often overlooked.

  Please don't mention that it "Looks Good".
  It really isn't and usually is the primary cause of any TPS malfunctioning.

  I know from your posting you don't really want to spend the money.
  This is money well spent, and could do your Van just a little bit better.