Why not. Reduce the cozy plans athwartship for the fusalage,bulkheads and carry through spars(canard and wing) to a width that is comfortable. The CG for the cozy planform shoulld be close the documented. You may have to carry batteries or extra weight in the nose like solo cozy pilots do.
If you do this you are the test pilot, which is kinda cool, if you are game.
Aerocanard has published open construction documents on the web. Templets cost $250. If you have patience then wait for a good ebay price. I paid $28 for a set of Cozy MKIV plans.