The 1.6 TD exhaust manifold has a trapizoid shape that doesn't match either of your drawings.
You are trying to match up the input and output flange of the HE211W turbine Here is the 1.6TD downpipe flange pattern:
http://www.ebay.com/itm/VW-8V-T25-Cast-Iron-Turbo-Exhaust-Manifold-Golf-Jetta-/380395953632?pt=Motors_Car_Truck_Parts_Accessories&hash=item58915d9de0&vxp=mtr
Unfortunately don't think that manifold works in your Vanagon, you need to place the turbo more to the side