RE: Scale question
It's a good idea to do the scale formula using the fuselage length to consider against the scale value you get with the wing span. Most semi-scale models have their wing and tail areas modified to get better model performance. Sometimes the tail is lengthened a bit, but you'll find the wing almost always is changed.
If you're looking for the right size scale pilot, it's even more important to consider the fuselage more than the wing.