Re: Alternator issue driving me crazy....
any alternator will work on any vehicle if it mounts up and pulley offset is correct, you just gotta have the wiring correct.
i've used alternators off v6 camry for the aw11 many times, now a 20v that has a different plug (squished oval type instead of round), i just used crimp connectors to give the 3 pins what they need to work.
check that the main charge wire back to the pos battery post has continuity, the fuse able link could have blown. i usually just replace the whole line with a good quality multistrand 8 gauge wire.
check that the plug with 3 pins is correct for the pins on the alt itself. (most toyota's have the same plug to pin orientation though). you can test those with a multimeter or test light.
if it's not blown, it sucks