The plane is awesome. I've had the same daydream. Build a plane around a ducted fan. Just a tube to direct the thrust, with control surfaces to well, make it controllable.
Just a few thoughts of an RC model that might actually fly. If my mental image is correct, the wings won't work. They are too far back. They need to be farther forward so the lift balances the weight of the fan. I wouldn't move them. I'd just extend the line forward where they meet the fuse, for a more swept form. I'm also thinking the rudder is not placed well. As per the images you posted above, it's just going to direct the exhaust from the ducted fan. That means the effect the rudder has will change every time you move the throttle. It'll be the same for the elevators, I'm guessing.
I literally know nothing. I'm just mentally imaging the airflow through and around that model and I want to see that thing fly. It'd be beautiful and maybe something I'd like to build in the future. When I know more stuff and have actually flown an RC airplane.
Others who know more will chime in. I agree with Merv. That's a great project!