if you can solder proficiently you can build a megasquirt computer to run it on for maybe $4-500 for everything (the ms unit a wide band 02 sensor and the adapter), a guy developed a adapter board to hook into the stock harness plug so it's nearly plug and play
ps you will need other things like bigger injectors to run boost but you could run the motor on the ms with all of the stock stuff to get everything up and running then build the blower