All you AWD commenters fail to realize that the drivetrain would need to be shifted forward relative to the front wheels in order to fit the front axles. Look at the engine bay of the BRZ/FRS/86 vs. an STI or WRX and take a look at the location of the strut towers versus the engine mass.
@zavenisgood4u I just searched car-part.com look for a Camry, Rav4, ES350, Avalon, etc. Search your local area, call them up and see who has the most complete set of parts and lowest mileage for the price.
Did you use the LS400 fuel sending unit or the MX73 unit with the LS400 gauge?