Being serious though, I have been in your situation, and owned a non turbo 33 when i was on my red p's.. they are nice cars.
I don't believe people should be swaying you to get a different car.. if you like/want something, get it. You won't be happy unless you buy what you want.
Just be smart about it, and consider the following:
Re-sale value in 2 years and whatever many days you have when you get off your p's (if you don't put the turbo engine back in)
Insurance, rego, etc... i imagine if you are looking at 33's you have already considered this though. I know for a fact, even n/a 33's, its not cheap.
If I was in your situation, and you don't mind spending $12k or so, look at getting a n/a one for cheaper then what you are looking at now (save the headaches) and modify it to how YOU want it to look and be happy with it. Sell it when your finished and buy something newer (in 2 years you will more then likely have your eyes set on something else).