RE: Guillows electric?
I checked out the pictures, looks great. I imagine some people have already told you that the wing loading on this plane is going to be high. That means it will be fast as a bullet, and pretty twitchy to fly. So if there is anyway you could try an actual trainer first like GWS F-stick it would be a good $50 to spend.
But, on with the task, we need to know:
the Current weight with servos,receivers, don't include the battery or motor. If you know the wing area, give that to me also.
Do you want to spend the money for some performance? Brushless and Lipos and ESC would probably be $170 or do you want to try and get by with Brushed and nicads? $70. It will be much lighter with Lipos.