I believe that these only have one CRANK position sensor, and one CAM sensor. If the Crankshaft Position Sensor dies then it will not fire. You can try cleaning the electrical connection to it and see if it fires up. Did you happen to notice if your tach dropped to 0 before it died completely?
You could also try unplugging the MAF and then try starting it. You may need to give it a little gas to help get it started, but it should idle on its own after a bit. If this is the case then the MAF may be shot.
The reason you lost boost is most likely due to the multiple misfires that were occuring. The ECU will pull timing to keep you from getting into boost when it detects issues like this. Keeps you from chipping pistons due to predetonation.
