is this a bolt on turbo we speek off ?
Not even close.
http://www.vwdiesel.net/forum/index.php?topic=31758.330starting on page 23 I get into the holset. I had approx. 20 hours in mounting mine, but it was spread over several days. Making the downpipe is the hardest thing. The manifolds you can buy will bolt right on and the oil feed is easy enough to adapt, but the oil drain and downpipe are not even close to stock. Also, the stock air box might work with custom line from the box to the turbo, but as is no way.