You sure can...
Later today I will pose a picture of the main wing.  I got the halves joined yesterday.  It has a slight forward sweep, and dihedral at about what you would expect for most trainers.  I'm using your TLAR design technique, and concentrating on keeping it light weight.  Here's the Gryphon  which has a 68" wingspan...  the new canard (SnellEnte) will be about 42" wingspan.
I have micro servo's already programmed for Elevon, and was planning on using one side of the servo to run the elevons, and the other to go forward to the Canard, but use far less throw on the canard (Elevons +/- 1 inch throw Canard +/- half inch) and starting point for CG will be 20% back from LE of main wing.  All based on the Gryphon pictured below





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