How do you know the MAF is bad? How tried to give it a good cleaning? If you want to clean it, just be careful not to break the sensors.
If it turns out the MAF needs to be replaced, a stock one will be fine for your plan. The only real reason you would need to change the MAF, is if you change the injectors. For only a CAI on a bolt-on motor, a stock MAF will be fine.
Take the money you would have spent on the MAF, and look into getting some gears. Best bang for the buck IMHO.