^^
Just guessing.........sounds like a DIY talent here, so perhaps if he can tile , he's handy at some millwork and trim
The floor is fine as is!! But the tiled walls may not be too difficult to re imagine, and really........it does read very much "bath" : ) not entry, or better stated in a home of this vintage? Vestibule!
Very helpful to the op and us? Show a few other rooms, give us a bit of style flavor, and a lot of help in that regard ....a different vision, might be forthcoming!
An arduous search for exact replacement is likely to be pretty darn futile, but may be a design gift in disguise. If all the pics of the whole area had been in place first glance? I'd have said all this on the first post .
Q