Home Made Shower Stall For Small Boat Can I Change A Bathtub To A Shower Stall?

Can i change a bathtub to a shower stall? - home made shower stall for small boat

I have a 3 bedroom, bath / shower things. I think I want to remove, put in a shower has (if I want to tile or pre-built to be clarified) and the use of additional space in cabinets and shelving space. Is it so difficult?

Another question, do you seriously reduces the value of our house? Children do not have a bathtub. We have our house on the market sometime next year.