Baths flooring is 18x24 porcelain tile.  

I still prefer porcelain tile in the baths/shower areas but lvp everywhere else!

Admittedly we only use porcelain as we found the 49cent ceramic tile from HD or Lowes is fragile & rarely geometrically consistent.

@JJ Buckner if it is porcelain then just have it refinished.

By the way , i was also looking at thin slabs which weight less and easy to cut , they should be installed on plywood  , but provide the same benefitsother options I considered are Porcelain slabs / corian , its very thin , but it looks like there are no price savings , but atleast they could be transported easily , if in case you find a good deal a little farther from your place

The wiring method is probably one of the safest as it was built, at the time it was built, because the grounded and ungrounded conductors are on opposite sides of a stud bay, everywhere the goes through a wood structure there is a porcelain insulator and the wires are remote from the wood in the structure because they are attached to porcelain insulators instead of nailed to the wood.

I guess the fourth option is the porcelain could crack but the only scenario I can imagine where this would happen without the toilet being dropped/hit with something is if the handyman over-tightened one or both of the bolts connecting the tank to the bowl.

I do these myself in my properties, and I replace all fiberglass tubs and surrounds with porcelain-on-steel tubs with tile surrounds. 

Here’s what you need to know about floor and wall tiles, along with some great ideas for installing matching tiles on the floors and walls.The Difference Between Floor Tile and Wall TilePerhaps you’ve heard rules of thumb like “Ceramic Tiles are for walls, and Porcelain Tiles are for floors” or “small tiles go on the wall, large tiles go on the floor.”

The paint got so bad that we just starting pealing it off in the inside of the tub just to discover that the porcelain underneath only had some chips that could've been filled in.