I HATE TRYING TO START A FRESHLY-REBUILT ENGINE. That being said, it did eventually start, and I got it to hold an idle with the glowplug heater removed after about 30 seconds of fiddling with the carb. It's nighttime now, so I can't do a speed run, and the weather is supposed to be sloppy through the weekend, so I won't be able to do a speed test for quite a while, but at least the damn thing still runs.
Also, I need to recharge the receiver pack. It's so low the servos won't even go into failsafe positions.