crank pulley aaz- motor

[jantd]

hi guys,

I've read the very interesting articles of mainly quicktd,enjoyed especially the crank modification from td to tdi,it's almost art..  

It got me wondering though whether I have to worry bout my aaz(golf 1.9 td '96) with 320k km..  
Should I take the pulley off and check the crank is still ok, or is it enough to feel whether there is play on it and leave like it is?
Second question:that clutch pulley for alternator:has it got the same external diameter-can i use the same belt?
Third:that intermediate pulley:does it ever fail,should I replace it's bearings?
Fourth:what about the other bearings (camshaft maybe,or pump?)

AAZy does it (still)!!!!!!

golf 1.9 td 320k
golf 1.6 d 350k (sold)