Use Lutron Claro plates... The vinyl material is easily cut and sanded yet they are more rigid than regular vinyl plates making them easy to cut and sand.
Get an inexpensive small band saw with a fine tooth blade. Make sure the band saw has a rip fence.
spray glue a piece of 100-150 grit sand paper to a piece of flat material for sanding/cleanup.
Set this all up on a cart so you can roll it from room to room, wing to wing etc.
Set the rip fence as needed, cut the plate, sand, install. Move on to next room.
This is a case where lack of planning on their part does constitute a profit opportunity to you.
I'm Not an engineer, but I play one on TV. My handle is Tweety but I have nothing to do with the organization of similar name. I just had a really big head as a child so folks called me tweety bird.
