The Gunivere and the Soiree work with a water supply 5-1/2" to the left.
The installation is very much like the Carlyle installation. (The Carlyle needs 7")
You install the Unifit to the flange, and drop the bowl over it.
If it's a new installation, there may be a plug for the flange.
Knock out the flange
Ready to drill the floor and set the Unifit with a wax seal.
Installed and ready to be caulked at the floor.