Installing a bathtub afterwards - experiences?

Had hoped that at least maybe with a macerator pump the wastewater could be pumped, for example, into the shower and maybe something could be realized through the water connections of the shower. But well, that's why I ask as a layperson beforehand ;)

Can one roughly say what costs are to be expected? Cheap bathtub, laying of pipes, demolition/renovation and craftsmen? Can it be roughly estimated? Between 1000-2000 euros?

I had hoped that at least maybe with a drain pump one could, for example, pump the wastewater into the shower and maybe realize something using the water connections of the shower. But well, that's why I ask as a layman beforehand ;)

Can one roughly say what costs to expect? Cheap bathtub, laying of pipes, demolition/renovation, and craftsmen? Can it be roughly estimated? Between 1000-2000 euros?

Between 1000-2000 euros? Yes, for the tiler, the plumber will charge the same again ... But: Without pictures or sketches, one can only guess here. A little more information makes everyone happier

I will go in search of pictures/sketches later.

Could the wastewater be directed into the shower via a flexible drain hose? Provided that the wastewater connection is higher than the shower tray?