So finally... our Munsters LE arrived and we were able to create the playfield protector - including mini playfield protector and four washers to improve the adjustment of the flipper bats for the mini playfield.
https://www.playfield-protectors.com/Home/Details/2qiTwyo8SEeg1lySXUaveA
Pro Version:
https://www.playfield-protectors.com/Home/Details/saeTwmlmHkmpyQh5tFHDMQ
Also available for the Pro:
Plastic Protectors:
https://www.playfield-protectors.com/Home/Details/-Kjtraj6oUO2eOrMUyzkDw
Speaker Grill Plastics:
https://www.playfield-protectors.com/Home/Details/uhXCuqkrmUO5HK0XeGWFpA