I was hoping to hear some "don'ts" related to your question. I will offer a couple.
While not related to trailering, some have reported the softer VariEze foam crushing where most of us rest the plane on our thigh while cranking the nose wheel up or down, at the bottom fuselage area there under the instrument panel. I heard of one trailer experience where the fuselage was set on two inch bed foam resulting in belly foam crushing aft of the speedbrake.
As for the lessers of evil, straps to the engine mount and struts, and a 4 or 6 foot board strapped securely atop the attach bulkhead for the canard would provide a good front tiedown anchor point without danger to fuselage foam. Hope you get more good info.