How do I convert a 1/2 bathroom to 3/4 bathroom inexpensively?


I have a half bath I'd like to convert to a 3/4 cheaply but still have it add to the home's value. There is a toilet at the far end and a vanity cabinet and sink, all on the left wall as you enter the space. There is not enough room for a 36x36 shower base, nor for a 32" base, to fit in front of the toilet as it faces out, and the floor is tile so I'd rather not tear it up.