Sweet! nice project!
And absolutely you will want reflex in this one.. that leds to a nice washout or even curved down wingtips that will help trim the beast and also hold the wings steady at high alpha.
The original didnt had reflex at all as it didnt needed pitch up trim as the plane was basically unstable and kept level by the computer... In the model this would not work as well because the cg will need to go forward to get the airplane trimmed in the conventional way.
Problem is that the canards doesnt have enough surface area for doing this work properly..
Also due to this cg taking the main landing gear a bit forward would help to make smoother takeoffs and wheelie landings...