What you propose is not an easy task, much less, in the first place, the shape and design of both the exhaust collector and the intake manifold prevent you from taking off the turbo without further ado.
To remove the turbo you should put the exhaust collector and the admission collector of the same engine in atmospheric version, (and are not cheap precisely).
Another problem is the injection pump, which is tasted to supply diesel to an supercharged engine. When leaving the non -turbo engine and with the same pump, he will miss air and start throwing a lot of black smoke by escape when accelerating.
To prevent the oil from passing the collectors from the broken turbo, the only thing that can be done is to plug the turbo lubrication tube (since this is already broken, nothing will happen). This solution is temporary because the engine breathes very badly on its own since the turbocharges of the turbo prevent it and circulate thus to the workshop without fear of running out of oil in the crankcase.
All the best.