Question about modular geometry + unique texture detail

So I’m trying to practice making modular geometry for an interior level. I’ve been attempting to watch and read a lot of guides and tutorials to get an idea of best practices, but I came up with a situation that I don’t know how to handle.

Imagine I’m making the floor pieces in the attached image. You can see how the floor pattern has a border that follows the contours of the wall, but it offsets further around the base of the stairs (highlighted purple). My question is how to best handle a detail like this.

Is it possible for all of the floor pieces (highlighted in green) to be instanced geometry AND use the same material? Or would this texture detail require either the geometry to be unique, or the material to be different from the other floor pieces?

Any advice would be appreciated.