Hi!
9x4 or 9x5 APC!
A 9x6 is a little too much prop for a n OS .20 FP (or MAX .20).
From asphalt it will take just a around 10meters until it takes off. But for heavens sake ...Take help from the club before you try to fly that plane yourself.
As for setting up the plane! Correct C of G is important as is axial trim and correct aileron and elevator throws.Side rudder isn't that critical.

Aileron: 1cm up and down measured at the back of the strip aileron!
Elevator: same as above.
These are just initial setting and they have to be adjusted after the first flight.

Some advise! Get rid of that plastic spinner! An aluminum spinner nut is much better.