Sounds like a good plan. There aren't tons of things that can cause a crank/no-start situation on a 3800. Check fuel pressure at the rail. If there is fuel, unplug the MAF. If that doesn't work, plug it in and unplug the MAP. If that doesn't work it's likely something ignition related, likely crank position sensor or ICM. Outside of that you'd be diagnosing wiring/PCM issues.