Toilets, Sinks, Showers, Tubs and Disposals - Adding a second bathroom from scratch?

I would like to convert most of a closet that is adjacent to the master bedroom to a bathroom. There is plenty of room for a shower stall, toilet and sink. How would I go about doing this with my house is on a cement slab? The fresh water plumbing is easy, the only thing I am really concerned about is running the sewer.

I guess I would have to cut a hole in the foundation, then run pipes from the sink, shower and toilet to the side of the house. (how would I do that?) Then from there find out which side of the house my sewer is one and splice into it? (does not sound like fun at ALL)

Asking about it I am just now realizing that it's probably not worth all the trouble, but I am still interested.

Anyone able to give advice on how to accomplish this?

Thanks

I would find a plumber that will work with you , let him advise you what to do , you can brake out the slab and trench , he can lay the pipe and connect .

I would expect you will need a permit and inspection .