Regarding what scope should the Guardianship movement cover I believe we need to prepare a list of scope items and let the broad Community pick and vote the ones they feel necessary.
We could have a period for a few weeks of preparing such a list and then have a Community campaign & voting process for another week.
To make it more efficient the voting would perhaps have to set priorities and not just select items, meaning everyone would have 1, 2, … , 10 “cards”, which they might put one-by-one on a scope item.
Like this we could have a priority order of scope items for the movement and decide to tackle the initial N number, which should be incorporated in the constitution of the movement.
This process could be repeated on a yearly basis to adopt to the changing & growing Ecosystem of Cardano, which might bring up new needs and redefine priorities.
Regarding the groups who wants to join the Guardianship movement, they would freely pick any number of the N scope items based on their preferences & characteristics, which would be somehow define their legitim mandate & mission.
If there would be some exclusive parts for certain items, such as the (1) you refer to in terms of the audit report, then a Group or two would be selected in consensus for this purpose. Such selection would have to depend on reputation, history, ratings, fitness, members profile and many other key attributes to make sure there is an objective decision.
IMO one thing is certain, such a critical & big movement and also the groups who wants to contribute with higher efforts will need some sort of funding. There might be groups who will limit their efforts so much, that they will decide to stay on a charity path.
We should really do this step by step (see proposed (A) … (F)) and with lot of patience to the process.
For now I would suggest to let everyone come up with any scope item he / she believes should be part of the Guardianship movement.