TO - All correct
CAT III - Two different scenario :
- RVR reports work on all the three points. - You need the relevent point(s) and in this case, according to EU-OPS, relevant means until acft runs faster than 60 Kts. Or more limiting according your company OM.
- RVR sys is downgraded. It means that one or more reporting point does not work. In this case you can apply downgraded considerations according your company OM. EU-OPS states what you wrote.
Ciao