Hi Nigel,
No there is no list of the installers.
Yes, you can install Ansys FluidStructures, as it has the same functionality as Fluids + Structures packages.
For 2023R2 we have Ansys Automated Installer, which includes the below packages

For other versions, you need to install separate packages. It cannot be installed in one set.
Please check if this link Ansys Help is helpful.