Hi Paul
I have just been through this loop for a VX clutch and there are various options which are listed for various of that era of Lancias. The clutch also fits some of the Alfa 164 amongst others. The key is to make sure it is the 230mm (228mm) one, not the 215mm or the larger ones fitted to some.
Yes, you will need a Beta clutch bearing.
FYI I ended up buying a QH QKT1467AF which came as Valeo manufactured parts. I would avoid the cheaper manuf as they do not have good write ups though no personal experience.
Peter