Things Reqd for MS install. Here is a general list of things reqd to run fuel control. Recommend fuel only first till you understand tunability and have it tuned, then run spark.

Fuel system:
1:1 Regulator
A return line back to the fuel tank (96-99 only/95 had a return line)
Injectors
Various fittings

Megasquirt ECU with hardware mods completed to read 420a crak signal
Harness
Injector plugs (4)
Iat sensor plug
Coolant temp sensor plug

Sensors:
Coolant temp sensor.
Intake air temp sensor

DB9 cable for a laptop communication with the Megasquirt.
Serial to usb adapter if your laptop does not have a serial plug
A Laptop! preferrably with a serial port

For spark you need to do some reading, worry about that later.
Terry