I am contemplating a condo purchase and this is the master bath. I want a shower not a bath. What are the issues in converting?

Anyone care to ballpark a very rough dollar value for renovating?

I am assuming because of the angled ceiling that it would have to be a tile shower, not a fiberglass unit. Is that correct assumption?

The condo is on a concrete slab, no basement (which is another negative on my list, but that's another story....)

sorry for small pic. that's all their is.