What are the specs/sizes for the MK4 LS400 wheels?

Reason I ask is I'm interested in a set of alloys with the following spec:

16x7.5JJ Stud5 PCD114.3 ET50

I am told they are for a GS300/GS430. They are brand new and five spoke.

I'd only be interested in them, should they match and I could fit the standard 225/60/16 tyres.