Unless the motor must be tilted up when traveling, you don't even need a "defloperizer". If you have at least a foot clearance between the skeg and the road you can trailer with the motor down.
If your engine is not Hydraulically locked rigid I would recommend a Transom saver. If however it does lock rigid using the Hydraulic trim/tilt system, then I would advise using what would then be a Transom Breaker. If the engine is locked rigid by the hydraulics, then the transom saver/breaker is attached. and the boat shifts back or forth even the tinniest bit on the trailer all that stress is now transferred to the transom.
Once again, my personal opinion only. A transom saver does firmly hold the engine and the transom solidly with the trailer when used. The mere fact that even little bouncing while trailering does eventually work on the transom. And that can be stopped using a transom saver. Any time you can stop any movement, you stop any stress cracking as well. Regardless the material, stress will eventually win out over the years. But again, this is just my opinion and by no means contradicting anybody else's.