I am amazed at how much you know just getting started!
When I started my first plane was a sportavia (COX)
A ready to fly motor glider.(cheap). Im sure they make
something like this now. All foam- All Controls included, etc.
The point is your gonna stack it anyway(if your like me)
so why worry about what weight your servos are!!!
I do not fly with motors anymore, but I do not agree with the
advise someone gave you not to use motor on the first run.
It was great for me to get as much distance from the ground as possible, to have time to get used to the controls.

Dude- GOOD LUCK
Harvey