Buddy. I'm sure you can find a million threads like this, and they all reach the same 2 points. Us who have been round a little while say to leave that car the fk alone. It's a money pit. You are far better off leavening it stock as, selling it and buying a turbo model when off your p plates.
The other bunch are head strong, but shit loads of parts, become financially stressed, but still have a NA pos at the end of the day.
So unless your going to tell me that your building an awesome NA Racecar, with high comp motor, ITB etc, just leave the thing alone, wait it out, and buy a turbo when you're off the plates.