Best group for vintage Rolls Royce

A friend of mine has just been GIVEN a fully working, roadworthy 1930
Roller! His father was a mechanic, and he is 'handy' but is going to
need all sorts of help and advice on spares, repairs etc. First
requirement is for a manual...

Would this be the best place to start? or is there a n.g. devoted to
either vintage or Rolls or both?

Thanks for any advice.