Bathroom refitting

Hi, I was wondering roughly how much it costs to refit a bathoom? It is very small, but I don't have the exact square footage. I would like to have a different bathtub, sink and toilet fitted, as well as a towel radiator removed and tiling put in instead of the linoleum currently in place. I'm on a very tight budget and can't afford to spend too much, if you could let me know a rough estimate that would be great. Thank you.