Looks like I had a lucky escape 
The pipe didn`t look that bad where you could easily see it, just that when it was off it it was obvious it was a disaster waiting to happen.Anyone with this motor that has a rusty oil feed pipe to the turbo, I would advise you change it before it changes the oil for you (on the motorway).
New ones available from Peter Gunzl (VW dealers have `em on back-order for ever
) Also changed the oil return line from the turbo to the sump as it had a weep round the swaged end fitting. Pattern part available again from Gunzl.