Yeah, don't under estimate how difficult it is to get a car running with a stand alone when youd don't have a base map. I managed to get this done in about 5 minutes but I had another customer with stock injectors that also struggled the same as you. I may have a copy of his fuel map somewhere which I know will start the car but it's was pretty bad elsewhere.
Honestly with all that time you spent trying to make a stock injector map I think you may have been better off just installing your 550cc injectors and starting with the 550 base map
There just isn't a whole lot of demand for a stand alone map running stock WRX injectors so this map so it was never made.
Send me an email to remind me about that map.