you can use a sr20det ecu, but you will aslo need the sr harness and distributor and coil packs. this is not a easy task as you have to modify the distributor and other minor things.
you can also use a 95 and under ka ecu but your harness will need to be rewired.
i personally would go with the 95 and under ka ecu with a bikirom board because it will cost you less then the other setups and you have tunability under your full control.
Either way i can do all of these options for you if your interested. i can also supply you with more info it needed.