You'd have to ask an ECU repair shop; early stage leaking capacitors that haven't ruined any traces are usually replaceable, some ICs are replaceable, but some ICs are discontinued and aren't available for purchase. If you buy another one, make sure to open it up and examine it thoroughly, these are 30 year old vehicles and ECUs from that era have capacitors that leak after 10 years (common across the board in Mitsus, Toyotas, Hondas, etc.)

This thread mentions IC 107-110 possibly burning due to failed IAC, you may want to check/disconnect yours before you put a working ECU in (so it doesn't burn up too): http://4x4wire.com/forums/ubbthread...ro-gen-1-ecu-needed-asap.html#Post768171