Thanks. The front door is a wood grain textured fiberglass double door, so I want to avoid drilling into the door face. It's an interesting challenge.

Trying two of these between the levers for now: https://www.amazon.com/U-Shaped-Proofing-Cabinets-Adjustable...

Plus, I found this, hoping it will work for me without too much damage to the door: https://www.snappower.com/pages/huglock