Why not keep it safe and buy the non turbo, i have both of them and i'm on my P's too and i don't even drive the turbo skyline don't want to risk it. So there is not point of having it. But the non turbo skyline is not too bad
Personally i would go the R33 skyline than the 180, I drove my mates 180 and i didn't have that same feel as the skyline, it's your choice it's your car not mine