RE: Here's a Simple & FREE First Foam Build Plan! Cool Looking Plane Too...
That should be plenty of thrust if your AUW is 5 oz!
Another half ounce of thrust and you'd be able to hover a cube of that weight, never mind a SO.
You also have the wing area to weight ratio of about a 20 oz full sized SO. So the plane ought to fly well -- probably fast and a little control sensitive. I'd keep the throw conservative on the elevator for first flights maybe even 1/8" on a baby SO.
If you have a single aileron, be sure to trim it down a little for first tests, or be ready to correct a roll into the aileron wing on launch. I've also found now with three different pushers I've built, they all required a little up elevator trim and also angling the motor down aft to counteract a diving tendency.
The combination of a diving tendency and roll toward the single aileron broke my first SO on its first glide test.
Others may have different experiences -- please add them if they contradict this.