Bathtub that doesn't require 3 walls???

[Jim Davis]

This is kind of a dumb question.  I'm looking at a house that needs a bathroom remodel.  I think a picture is worth a thousand words here -- where the heck could I find a tub like the one below?  Everything I see online is "alcove" which requires 3 walls and only has an apron on one side.  Or, they are freestanding and expensive.  Yes, I realize you could frame out a full-height or even a knee wall at the end of the tub, but it's already really tight with a tiny vanity crammed in at that end.

If I purchase the property and hire a contractor, I'd put it on him to figure it out, but nonetheless, this is just bothering me...