Giloc, let me make it clear, I am not associated with any maintenance organisation. Rather than me trying to give a detailed response to all the questions I would suggest to any of the doubters that all can be verified by picking up the phone to any regional CAA office (easily found from the website) and speaking to a surveyor there.
They are keen to get the message across to private owners and will happily dispel any doubts. They are, however, not likely to get into discussion regarding commercial arrangements between maintenance companies and owners and it should be understood that surveyors are known to have differing interpretations of the rules. This is likely to be the case until the rules have been in play for at least 12 months. At least thats my take on it.