good ones do exist, you will have to keep looking and make sure you the get the engine tested ! compression test and leak down test atleast.
im still running stock standard internals, perfect oil pressure and 160psi comp, pushing close to 300kw@wheels and i have total faith in it, i could jump in it and drive to melbourne no worries.
yes they are old, yes they have been abused, but good ones do exist !
if you can stretch ur budget and buy one with a rebuild (with reciepts) and after market turbos WIN WIN
ps. mine was bought completly standard still had the restrictor in the boost line, but i slowly built the car up to where i wanted it to be. that way i new exactly what was done to it, and made sure no corners were cut during the process