1800 is not going to cut it. If u are strepped for cash your best bet will be to buy a used kit.
Cybernation Stage 1 kit 2200
->http://forums.clubrsx.com/showthread.php?t=395995
Then u will ned to get engine management (k-pro) and i think that costs almost 1000. Then a boost controler, Gauges, clutch, ect.... Its going to add up.