1.8t's are fairly plentiful, but only as "shelf" motors.  Meaning the
engine is on a shelf, with the accessories removed, and the car crushed.
The 1.8t wiring harness I saw was more work to get out of the car than most
Subarus'. To get some functions you have to bury the whole gauge cluster
from the donor in your van, depending on the year of the 1.8t. In short, it
is a very complicated install, to get similar power that you would get from
a normally aspirated Subaru. Yeah, I know you can turn the boost way up, but
not without sacrificing reliability. It is VW, and is a nice motor.
   I saw one of Stephansautohaus's conversions and it was very nice.  They
are getting it past the CA BAR (not CARB) which is nice for those in CA.

   John