Not worth it mate, Do a search as there have been a couple of threads on this. Basically to sum it up a turbo motor has less compression to allow for boost. If you took the turbo off and blocked everything up you would be left with a motor that had less grunt then a factory delivered NA.
Not saying it cant be done but the work envolved you would have to think twice. This price must be damn good as GT's can be picked up for around 20g's these days depending on where you are and four door models are cheaper again.
Or am I guessing because your on your P's you want to take all the gear off and re attach everything when you go of your P's?