Hockman, that's pretty much the right idea. You might be able to go with the second rack from the top if your broiler is strong enough- and, ideally, you should shoot for 2 minutes without the broiler and 2 minutes with, for a total bake time of 4 minutes.
It's also a good idea to pre-heat the oven to 525. If you pre-heat it to the top temp, the broiler might not stay on for long, since that, too, is usually controlled by the 550 thermostat.
An infrared thermometer helps, but isn't absolutely essential.
It'll take a few attempts to dial in the right temperature for the plate.
Lastly, if your oven can accommodate a larger plate, get it- even if it's just 16.5 x 16.5. Ultimately, you're going to want to make 16" pizzas and launching a 16" pizza on a 16" plate is very difficult. The bigger the better. As long as the oven door closes, you're fine.