1st things 1st
Like the other guy said, Get SUBFRAME connectors first, just installing these alone will make your car feel much, much more stable. I did my 1st car the wrong way. I got a supercharger 1st then started doing my suspension. If you want to build your car take care of the important stuff 1st. do this
1) Subframe Connectors
2) Upgrade your brakes.eg bear racing, brembo
3) Panhard rod
4) offroad pipe, this can be done at anytime.
5) Gears 5speed get 3.55s auto get 3.73s
6) short throw shifter makes the car much more fun
7) Caster camber Plates, springs ect. I did mostly M&M stuff, you won't believe how much fun a car is when your able to blaze turns faster than Porshes and Ferrari's
8) Now your ready for the engine, Intake Manifold, Heads, Headers, Camshaft.
9) Now you've got a fun and well balanced car.
This is from experience, like I said before my first car started with a supercharger, although the charger was TONS of fun, you might wanna take care of the important stuff first before your throw down 3k-4k on just a supercharger and misc components for it.
Get the Frame, brakes and Suspension taken care of first, then go all out with the engine. 