However, I would rather take a moment to reflect seriously on whether the offered equipment is sufficient for me and then possibly find out what that costs based on samples.
A fitting statement, because that is often where the wheat is separated from the chaff. The equipment is certainly simple but can still be nice, so I would take a close look beforehand or have it clearly explained to me what the extra cost is for swapping, for example, the bathtub model XY from manufacturer Z, shower fittings, and much more. Because only then do you have YOUR house and can see the actual price.
It might also be worth considering whether you lay a floor in some rooms that you can actually do relatively easily yourself and still make it look nice, such as the utility room, guest bathroom, or similar; sometimes I at least find there are too many tiles. Nowadays there are really stylish options that are not worse than tiles.
Plastering really has to be done expertly; for us it was the specialist or even several, and yet it is not "perfect."
I believe that through intensive and clever planning, an absolutely honest approach to the equipment (what do I really want/need) you can save the most money.
Hectic or prematurely finalized planning can be sanded off later, not with four tennis arms. Seemingly insignificant, unnecessarily planned details can cost or save so much money.