Ok so could be done as long as I have the right head gasket, egt + boost gauges, may be able to buy a cheap surf for parts so that may be handy for the boost compensater.
If I did it properly with the 5le rebuild kit and all the other parts around it and didn't push the limits of it and thrash it or run silly boost, which I don't plan to would it last or would it just be throwing money away? Only want it for abit more poke and for towing etc.
If they're not the best motor to turbo I'll just fix it as it is and get something better down the track.