if your on a budget, stick to a supercharger.
there is a lot of factors when building a car that you dont realize when adding forced induction.
ive owned a lot of cars and ive built most of them, when i stared i was like "7k for a whipple, nice thats it" lol there is fuel, cooling, tunning, tires, clutch, axels, water pumps, ecu to allow you to tune, and plenty more.
the key is doing ALLLLLLLLLL the research you can before you get in to a project. a nice vf supercharger kit for like 4500-5500 is great, comes with a tune and everything you need, just get a walboro255 and some tires probably a new clutch after you shredd up the streets and youll be close to 6500-7k and the only thing you need to worry about is regular maintence car will make like 260whpish on a good day and it will be ALOT of fun and very reliable.
the 2zz is a great motor and its very easy to maintain