Hi Peter,
I am sponsored by Extreme Flight RC so maybe I can answer some of your questions.
The little Extra you are looking at is supposed to come in around 7 pounds +/-
I dont know what electric motor would be suitable for it. A big Hacker I would imagine.
The Saito 1.00 would be great in this plane for your friend.
I have not personally flown this plane but I saw it fly with a YS 1.10 and it was amazing.
Theses planes are not out yet but are expected in June.
Let me know if you have anymore questions.
You can also e-mail Chris Hinson. He is the designer and President of Extreme flight RC.
[email protected]
Here are some pics of the Extra I took a few weeks ago.