Hi DUBUCMAN
I don't have that model, but I have built two 46 size Canards with pusher engines, of my own design. Your CG looks about right. I always had to use lead ballast at the very front to get the CG correct. Eventually I changed the lead ballast to using two batteries and switches, mounted at the very front of the plane, which increase the reliability of the system. Make certain you use a pusher prop and that it is mounted correct. I saw a plane just like yours get totaled because the special pusher prop was mounted wrong. Also, my engine always overheated on the ground, but never in the air. Do all of your tuning using a "standard identical prop" and then switch to the pusher prop for flights. I actually saw fuel boiling in the carburetor of my engine while I was tuning it; that is how I learned that the engine would overheat in a pusher application. To my knowledge, I am the only person that has ever mentioned this (pusher engine overheats on the ground) in this forum, and with that, I let you to decide what to do about it.