Interesting for anyone who is working on a fuel injected bus or Vanagon, there is a guy on The Samba reproducing some of the molded vacuum hoses that are NLA. He's making them out of silicone, and you can get the L-shaped hose coming from the oil breather here:
http://www.thesamba.com/vw/classifieds/detail.php?id=1218072And the Vanagon version here:
http://www.thesamba.com/vw/classifieds/detail.php?id=1218074He's also got the C-shaped hose that connects to the decel valve that is sometimes hard to find:
http://www.thesamba.com/vw/classifieds/detail.php?id=1220031He's also got some hose kits and other things for early water-cooled engines:
http://www.thesamba.com/vw/classifieds/search.php?username=GEEBEEIt's not cheap, but considering no one else is reproducing some of these hoses, it can be a bargain if you can't find it anywhere else.