Min Plastics, 921 Kaamahu Place, Honolulu, can provide a plastic license backing plate that includes a safety sticker tab extending horizonally to the right of the license plate.
We went by Min Plastics and requested a mod to the previous backing plate design. The were happy to accommodate the change. They usually have one already cut from their template. But I recommend a short call to verify before you make a trip.
(847-1511 ask for Claudio)
I'll add a picture here later when I get my new plate.